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@@ -30,13 +30,13 @@
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</div><aside class="tsd-sources"><p>Inherited from <a href="_internal_.EventEmitter.html">EventEmitter</a>.<a href="_internal_.EventEmitter.html#addListener">addListener</a></p><ul><li>Defined in node_modules/@types/node/events.d.ts:597</li></ul></aside></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><a id="emit" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span>emit</span><a href="#emit" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-anchor-link"><a id="emit.emit-1" class="tsd-anchor"></a><span class="tsd-kind-call-signature">emit</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="_internal_.ReadableStream.html#emit.emit-1.K-2">K</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">eventName</span>, <span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span><a href="#emit.emit-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Synchronously calls each of the listeners registered for the event named <code>eventName</code>, in the order they were registered, passing the supplied arguments
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to each.</p>
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<p>Returns <code>true</code> if the event had listeners, <code>false</code> otherwise.</p>
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<pre><code class="js"><span class="hl-9">import</span><span class="hl-1"> { </span><span class="hl-10">EventEmitter</span><span class="hl-1"> } </span><span class="hl-9">from</span><span class="hl-1"> </span><span class="hl-2">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">myEmitter</span><span class="hl-1"> = </span><span class="hl-8">new</span><span class="hl-1"> </span><span class="hl-0">EventEmitter</span><span class="hl-1">();</span><br/><br/><span class="hl-12">// First listener</span><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">, </span><span class="hl-8">function</span><span class="hl-1"> </span><span class="hl-0">firstListener</span><span class="hl-1">() {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'Helloooo! first listener'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><span class="hl-12">// Second listener</span><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">, </span><span class="hl-8">function</span><span class="hl-1"> </span><span class="hl-0">secondListener</span><span class="hl-1">(</span><span class="hl-10">arg1</span><span class="hl-1">, </span><span class="hl-10">arg2</span><span class="hl-1">) {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">`event with parameters </span><span class="hl-8">${</span><span class="hl-10">arg1</span><span class="hl-8">}</span><span class="hl-2">, </span><span class="hl-8">${</span><span class="hl-10">arg2</span><span class="hl-8">}</span><span class="hl-2"> in second listener`</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><span class="hl-12">// Third listener</span><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">, </span><span class="hl-8">function</span><span class="hl-1"> </span><span class="hl-0">thirdListener</span><span class="hl-1">(...</span><span class="hl-10">args</span><span class="hl-1">) {</span><br/><span class="hl-1"> </span><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">parameters</span><span class="hl-1"> = </span><span class="hl-10">args</span><span class="hl-1">.</span><span class="hl-0">join</span><span class="hl-1">(</span><span class="hl-2">', '</span><span class="hl-1">);</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">`event with parameters </span><span class="hl-8">${</span><span class="hl-10">parameters</span><span class="hl-8">}</span><span class="hl-2"> in third listener`</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><br/><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">listeners</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">));</span><br/><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">, </span><span class="hl-13">1</span><span class="hl-1">, </span><span class="hl-13">2</span><span class="hl-1">, </span><span class="hl-13">3</span><span class="hl-1">, </span><span class="hl-13">4</span><span class="hl-1">, </span><span class="hl-13">5</span><span class="hl-1">);</span><br/><br/><span class="hl-12">// Prints:</span><br/><span class="hl-12">// [</span><br/><span class="hl-12">// [Function: firstListener],</span><br/><span class="hl-12">// [Function: secondListener],</span><br/><span class="hl-12">// [Function: thirdListener]</span><br/><span class="hl-12">// ]</span><br/><span class="hl-12">// Helloooo! first listener</span><br/><span class="hl-12">// event with parameters 1, 2 in second listener</span><br/><span class="hl-12">// event with parameters 1, 2, 3, 4, 5 in third listener</span>
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<pre><code class="js"><span class="hl-0">import</span><span class="hl-1"> { </span><span class="hl-2">EventEmitter</span><span class="hl-1"> } </span><span class="hl-0">from</span><span class="hl-1"> </span><span class="hl-3">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">myEmitter</span><span class="hl-1"> = </span><span class="hl-4">new</span><span class="hl-1"> </span><span class="hl-6">EventEmitter</span><span class="hl-1">();</span><br/><br/><span class="hl-7">// First listener</span><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">, </span><span class="hl-4">function</span><span class="hl-1"> </span><span class="hl-6">firstListener</span><span class="hl-1">() {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'Helloooo! first listener'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><span class="hl-7">// Second listener</span><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">, </span><span class="hl-4">function</span><span class="hl-1"> </span><span class="hl-6">secondListener</span><span class="hl-1">(</span><span class="hl-2">arg1</span><span class="hl-1">, </span><span class="hl-2">arg2</span><span class="hl-1">) {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">`event with parameters </span><span class="hl-4">${</span><span class="hl-2">arg1</span><span class="hl-4">}</span><span class="hl-3">, </span><span class="hl-4">${</span><span class="hl-2">arg2</span><span class="hl-4">}</span><span class="hl-3"> in second listener`</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><span class="hl-7">// Third listener</span><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">, </span><span class="hl-4">function</span><span class="hl-1"> </span><span class="hl-6">thirdListener</span><span class="hl-1">(...</span><span class="hl-2">args</span><span class="hl-1">) {</span><br/><span class="hl-1"> </span><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">parameters</span><span class="hl-1"> = </span><span class="hl-2">args</span><span class="hl-1">.</span><span class="hl-6">join</span><span class="hl-1">(</span><span class="hl-3">', '</span><span class="hl-1">);</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">`event with parameters </span><span class="hl-4">${</span><span class="hl-2">parameters</span><span class="hl-4">}</span><span class="hl-3"> in third listener`</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><br/><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">listeners</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">));</span><br/><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">, </span><span class="hl-13">1</span><span class="hl-1">, </span><span class="hl-13">2</span><span class="hl-1">, </span><span class="hl-13">3</span><span class="hl-1">, </span><span class="hl-13">4</span><span class="hl-1">, </span><span class="hl-13">5</span><span class="hl-1">);</span><br/><br/><span class="hl-7">// Prints:</span><br/><span class="hl-7">// [</span><br/><span class="hl-7">// [Function: firstListener],</span><br/><span class="hl-7">// [Function: secondListener],</span><br/><span class="hl-7">// [Function: thirdListener]</span><br/><span class="hl-7">// ]</span><br/><span class="hl-7">// Helloooo! first listener</span><br/><span class="hl-7">// event with parameters 1, 2 in second listener</span><br/><span class="hl-7">// event with parameters 1, 2, 3, 4, 5 in third listener</span>
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</code><button type="button">Copy</button></pre>
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</div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span><a id="emit.emit-1.K-2" class="tsd-anchor"></a><span class="tsd-kind-type-parameter">K</span></span></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><span class="tsd-kind-parameter">eventName</span>: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span></span></li><li><span><code class="tsd-tag">Rest</code><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span>: <a href="../types/_internal_.AnyRest.html" class="tsd-signature-type tsd-kind-type-alias">AnyRest</a></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-1" class="tsd-anchor"></a>Since<a href="#Since-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v0.1.26</p>
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</div><aside class="tsd-sources"><p>Inherited from <a href="_internal_.EventEmitter.html">EventEmitter</a>.<a href="_internal_.EventEmitter.html#emit">emit</a></p><ul><li>Defined in node_modules/@types/node/events.d.ts:859</li></ul></aside></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><a id="eventNames" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span>event<wbr/>Names</span><a href="#eventNames" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-anchor-link"><a id="eventNames.eventNames-1" class="tsd-anchor"></a><span class="tsd-kind-call-signature">event<wbr/>Names</span><span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-symbol">(</span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">[]</span><a href="#eventNames.eventNames-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Returns an array listing the events for which the emitter has registered
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listeners. The values in the array are strings or <code>Symbol</code>s.</p>
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<pre><code class="js"><span class="hl-9">import</span><span class="hl-1"> { </span><span class="hl-10">EventEmitter</span><span class="hl-1"> } </span><span class="hl-9">from</span><span class="hl-1"> </span><span class="hl-2">'node:events'</span><span class="hl-1">;</span><br/><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">myEE</span><span class="hl-1"> = </span><span class="hl-8">new</span><span class="hl-1"> </span><span class="hl-0">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'foo'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> {});</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'bar'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> {});</span><br/><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">sym</span><span class="hl-1"> = </span><span class="hl-0">Symbol</span><span class="hl-1">(</span><span class="hl-2">'symbol'</span><span class="hl-1">);</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-10">sym</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> {});</span><br/><br/><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">eventNames</span><span class="hl-1">());</span><br/><span class="hl-12">// Prints: [ 'foo', 'bar', Symbol(symbol) ]</span>
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<pre><code class="js"><span class="hl-0">import</span><span class="hl-1"> { </span><span class="hl-2">EventEmitter</span><span class="hl-1"> } </span><span class="hl-0">from</span><span class="hl-1"> </span><span class="hl-3">'node:events'</span><span class="hl-1">;</span><br/><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">myEE</span><span class="hl-1"> = </span><span class="hl-4">new</span><span class="hl-1"> </span><span class="hl-6">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'foo'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> {});</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'bar'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> {});</span><br/><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">sym</span><span class="hl-1"> = </span><span class="hl-6">Symbol</span><span class="hl-1">(</span><span class="hl-3">'symbol'</span><span class="hl-1">);</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-2">sym</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> {});</span><br/><br/><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">eventNames</span><span class="hl-1">());</span><br/><span class="hl-7">// Prints: [ 'foo', 'bar', Symbol(symbol) ]</span>
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</code><button type="button">Copy</button></pre>
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</div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-symbol">(</span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">[]</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-2" class="tsd-anchor"></a>Since<a href="#Since-2" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v6.0.0</p>
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@@ -50,7 +50,7 @@ in the list of the listeners of the event.</p>
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</div><div class="tsd-comment tsd-typography"></div></li><li><span><code class="tsd-tag">Optional</code><span class="tsd-kind-parameter">listener</span>: <span class="tsd-signature-type">Function</span></span><div class="tsd-comment tsd-typography"><p>The event handler function</p>
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</div><div class="tsd-comment tsd-typography"></div></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-4" class="tsd-anchor"></a>Since<a href="#Since-4" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v3.2.0</p>
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</div><aside class="tsd-sources"><p>Inherited from <a href="_internal_.EventEmitter.html">EventEmitter</a>.<a href="_internal_.EventEmitter.html#listenerCount">listenerCount</a></p><ul><li>Defined in node_modules/@types/node/events.d.ts:868</li></ul></aside></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><a id="listeners" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span>listeners</span><a href="#listeners" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-anchor-link"><a id="listeners.listeners-1" class="tsd-anchor"></a><span class="tsd-kind-call-signature">listeners</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="_internal_.ReadableStream.html#listeners.listeners-1.K-4">K</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">eventName</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Function</span><span class="tsd-signature-symbol">[]</span><a href="#listeners.listeners-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Returns a copy of the array of listeners for the event named <code>eventName</code>.</p>
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<pre><code class="js"><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">, (</span><span class="hl-10">stream</span><span class="hl-1">) </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-10">util</span><span class="hl-1">.</span><span class="hl-0">inspect</span><span class="hl-1">(</span><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">listeners</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">)));</span><br/><span class="hl-12">// Prints: [ [Function] ]</span>
|
||||
<pre><code class="js"><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">, (</span><span class="hl-2">stream</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span><br/><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-2">util</span><span class="hl-1">.</span><span class="hl-6">inspect</span><span class="hl-1">(</span><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">listeners</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">)));</span><br/><span class="hl-7">// Prints: [ [Function] ]</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
</div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span><a id="listeners.listeners-1.K-4" class="tsd-anchor"></a><span class="tsd-kind-type-parameter">K</span></span></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><span class="tsd-kind-parameter">eventName</span>: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Function</span><span class="tsd-signature-symbol">[]</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-5" class="tsd-anchor"></a>Since<a href="#Since-5" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v0.1.26</p>
|
||||
@@ -60,13 +60,13 @@ in the list of the listeners of the event.</p>
|
||||
named <code>eventName</code>. No checks are made to see if the <code>listener</code> has already
|
||||
been added. Multiple calls passing the same combination of <code>eventName</code> and
|
||||
<code>listener</code> will result in the <code>listener</code> being added, and called, multiple times.</p>
|
||||
<pre><code class="js"><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">, (</span><span class="hl-10">stream</span><span class="hl-1">) </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
<pre><code class="js"><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">, (</span><span class="hl-2">stream</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
<p>Returns a reference to the <code>EventEmitter</code>, so that calls can be chained.</p>
|
||||
<p>By default, event listeners are invoked in the order they are added. The <code>emitter.prependListener()</code> method can be used as an alternative to add the
|
||||
event listener to the beginning of the listeners array.</p>
|
||||
<pre><code class="js"><span class="hl-9">import</span><span class="hl-1"> { </span><span class="hl-10">EventEmitter</span><span class="hl-1"> } </span><span class="hl-9">from</span><span class="hl-1"> </span><span class="hl-2">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">myEE</span><span class="hl-1"> = </span><span class="hl-8">new</span><span class="hl-1"> </span><span class="hl-0">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'foo'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'a'</span><span class="hl-1">));</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">prependListener</span><span class="hl-1">(</span><span class="hl-2">'foo'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'b'</span><span class="hl-1">));</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'foo'</span><span class="hl-1">);</span><br/><span class="hl-12">// Prints:</span><br/><span class="hl-12">// b</span><br/><span class="hl-12">// a</span>
|
||||
<pre><code class="js"><span class="hl-0">import</span><span class="hl-1"> { </span><span class="hl-2">EventEmitter</span><span class="hl-1"> } </span><span class="hl-0">from</span><span class="hl-1"> </span><span class="hl-3">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">myEE</span><span class="hl-1"> = </span><span class="hl-4">new</span><span class="hl-1"> </span><span class="hl-6">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'foo'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'a'</span><span class="hl-1">));</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">prependListener</span><span class="hl-1">(</span><span class="hl-3">'foo'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'b'</span><span class="hl-1">));</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'foo'</span><span class="hl-1">);</span><br/><span class="hl-7">// Prints:</span><br/><span class="hl-7">// b</span><br/><span class="hl-7">// a</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
</div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span><a id="on.on-1.K-6" class="tsd-anchor"></a><span class="tsd-kind-type-parameter">K</span></span></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><span class="tsd-kind-parameter">eventName</span>: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span></span><div class="tsd-comment tsd-typography"><p>The name of the event.</p>
|
||||
@@ -74,13 +74,13 @@ event listener to the beginning of the listeners array.</p>
|
||||
</div><div class="tsd-comment tsd-typography"></div><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures tsd-is-external"><li class="tsd-signature"><span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li><li class="tsd-description"><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Rest</code><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span>: <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">[]</span></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4></li></ul></li></ul></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">this</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-7" class="tsd-anchor"></a>Since<a href="#Since-7" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v0.1.101</p>
|
||||
</div><aside class="tsd-sources"><p>Inherited from <a href="_internal_.EventEmitter.html">EventEmitter</a>.<a href="_internal_.EventEmitter.html#on">on</a></p><ul><li>Defined in node_modules/@types/node/events.d.ts:629</li></ul></aside></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><a id="once" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span>once</span><a href="#once" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-anchor-link"><a id="once.once-1" class="tsd-anchor"></a><span class="tsd-kind-call-signature">once</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="_internal_.ReadableStream.html#once.once-1.K-7">K</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">eventName</span>, <span class="tsd-kind-parameter">listener</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">this</span><a href="#once.once-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Adds a <strong>one-time</strong> <code>listener</code> function for the event named <code>eventName</code>. The
|
||||
next time <code>eventName</code> is triggered, this listener is removed and then invoked.</p>
|
||||
<pre><code class="js"><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">once</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">, (</span><span class="hl-10">stream</span><span class="hl-1">) </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'Ah, we have our first user!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
<pre><code class="js"><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">once</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">, (</span><span class="hl-2">stream</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'Ah, we have our first user!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
<p>Returns a reference to the <code>EventEmitter</code>, so that calls can be chained.</p>
|
||||
<p>By default, event listeners are invoked in the order they are added. The <code>emitter.prependOnceListener()</code> method can be used as an alternative to add the
|
||||
event listener to the beginning of the listeners array.</p>
|
||||
<pre><code class="js"><span class="hl-9">import</span><span class="hl-1"> { </span><span class="hl-10">EventEmitter</span><span class="hl-1"> } </span><span class="hl-9">from</span><span class="hl-1"> </span><span class="hl-2">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">myEE</span><span class="hl-1"> = </span><span class="hl-8">new</span><span class="hl-1"> </span><span class="hl-0">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">once</span><span class="hl-1">(</span><span class="hl-2">'foo'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'a'</span><span class="hl-1">));</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">prependOnceListener</span><span class="hl-1">(</span><span class="hl-2">'foo'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'b'</span><span class="hl-1">));</span><br/><span class="hl-10">myEE</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'foo'</span><span class="hl-1">);</span><br/><span class="hl-12">// Prints:</span><br/><span class="hl-12">// b</span><br/><span class="hl-12">// a</span>
|
||||
<pre><code class="js"><span class="hl-0">import</span><span class="hl-1"> { </span><span class="hl-2">EventEmitter</span><span class="hl-1"> } </span><span class="hl-0">from</span><span class="hl-1"> </span><span class="hl-3">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">myEE</span><span class="hl-1"> = </span><span class="hl-4">new</span><span class="hl-1"> </span><span class="hl-6">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">once</span><span class="hl-1">(</span><span class="hl-3">'foo'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'a'</span><span class="hl-1">));</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">prependOnceListener</span><span class="hl-1">(</span><span class="hl-3">'foo'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'b'</span><span class="hl-1">));</span><br/><span class="hl-2">myEE</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'foo'</span><span class="hl-1">);</span><br/><span class="hl-7">// Prints:</span><br/><span class="hl-7">// b</span><br/><span class="hl-7">// a</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
</div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span><a id="once.once-1.K-7" class="tsd-anchor"></a><span class="tsd-kind-type-parameter">K</span></span></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><span class="tsd-kind-parameter">eventName</span>: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span></span><div class="tsd-comment tsd-typography"><p>The name of the event.</p>
|
||||
@@ -90,7 +90,7 @@ event listener to the beginning of the listeners array.</p>
|
||||
event named <code>eventName</code>. No checks are made to see if the <code>listener</code> has
|
||||
already been added. Multiple calls passing the same combination of <code>eventName</code>
|
||||
and <code>listener</code> will result in the <code>listener</code> being added, and called, multiple times.</p>
|
||||
<pre><code class="js"><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">prependListener</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">, (</span><span class="hl-10">stream</span><span class="hl-1">) </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
<pre><code class="js"><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">prependListener</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">, (</span><span class="hl-2">stream</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
<p>Returns a reference to the <code>EventEmitter</code>, so that calls can be chained.</p>
|
||||
@@ -99,7 +99,7 @@ and <code>listener</code> will result in the <code>listener</code> being added,
|
||||
</div><div class="tsd-comment tsd-typography"></div><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures tsd-is-external"><li class="tsd-signature"><span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li><li class="tsd-description"><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Rest</code><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span>: <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">[]</span></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4></li></ul></li></ul></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">this</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-9" class="tsd-anchor"></a>Since<a href="#Since-9" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v6.0.0</p>
|
||||
</div><aside class="tsd-sources"><p>Inherited from <a href="_internal_.EventEmitter.html">EventEmitter</a>.<a href="_internal_.EventEmitter.html#prependListener">prependListener</a></p><ul><li>Defined in node_modules/@types/node/events.d.ts:886</li></ul></aside></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><a id="prependOnceListener" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span>prepend<wbr/>Once<wbr/>Listener</span><a href="#prependOnceListener" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-anchor-link"><a id="prependOnceListener.prependOnceListener-1" class="tsd-anchor"></a><span class="tsd-kind-call-signature">prepend<wbr/>Once<wbr/>Listener</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="_internal_.ReadableStream.html#prependOnceListener.prependOnceListener-1.K-9">K</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">eventName</span>, <span class="tsd-kind-parameter">listener</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">this</span><a href="#prependOnceListener.prependOnceListener-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Adds a <strong>one-time</strong><code>listener</code> function for the event named <code>eventName</code> to the <em>beginning</em> of the listeners array. The next time <code>eventName</code> is triggered, this
|
||||
listener is removed, and then invoked.</p>
|
||||
<pre><code class="js"><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">prependOnceListener</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">, (</span><span class="hl-10">stream</span><span class="hl-1">) </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'Ah, we have our first user!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
<pre><code class="js"><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">prependOnceListener</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">, (</span><span class="hl-2">stream</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'Ah, we have our first user!'</span><span class="hl-1">);</span><br/><span class="hl-1">});</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
<p>Returns a reference to the <code>EventEmitter</code>, so that calls can be chained.</p>
|
||||
@@ -108,7 +108,7 @@ listener is removed, and then invoked.</p>
|
||||
</div><div class="tsd-comment tsd-typography"></div><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures tsd-is-external"><li class="tsd-signature"><span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li><li class="tsd-description"><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Rest</code><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span>: <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">[]</span></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4></li></ul></li></ul></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">this</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-10" class="tsd-anchor"></a>Since<a href="#Since-10" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v6.0.0</p>
|
||||
</div><aside class="tsd-sources"><p>Inherited from <a href="_internal_.EventEmitter.html">EventEmitter</a>.<a href="_internal_.EventEmitter.html#prependOnceListener">prependOnceListener</a></p><ul><li>Defined in node_modules/@types/node/events.d.ts:902</li></ul></aside></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><a id="rawListeners" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span>raw<wbr/>Listeners</span><a href="#rawListeners" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-anchor-link"><a id="rawListeners.rawListeners-1" class="tsd-anchor"></a><span class="tsd-kind-call-signature">raw<wbr/>Listeners</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="_internal_.ReadableStream.html#rawListeners.rawListeners-1.K-10">K</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">eventName</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Function</span><span class="tsd-signature-symbol">[]</span><a href="#rawListeners.rawListeners-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Returns a copy of the array of listeners for the event named <code>eventName</code>,
|
||||
including any wrappers (such as those created by <code>.once()</code>).</p>
|
||||
<pre><code class="js"><span class="hl-9">import</span><span class="hl-1"> { </span><span class="hl-10">EventEmitter</span><span class="hl-1"> } </span><span class="hl-9">from</span><span class="hl-1"> </span><span class="hl-2">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">emitter</span><span class="hl-1"> = </span><span class="hl-8">new</span><span class="hl-1"> </span><span class="hl-0">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-10">emitter</span><span class="hl-1">.</span><span class="hl-0">once</span><span class="hl-1">(</span><span class="hl-2">'log'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'log once'</span><span class="hl-1">));</span><br/><br/><span class="hl-12">// Returns a new Array with a function `onceWrapper` which has a property</span><br/><span class="hl-12">// `listener` which contains the original listener bound above</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">listeners</span><span class="hl-1"> = </span><span class="hl-10">emitter</span><span class="hl-1">.</span><span class="hl-0">rawListeners</span><span class="hl-1">(</span><span class="hl-2">'log'</span><span class="hl-1">);</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">logFnWrapper</span><span class="hl-1"> = </span><span class="hl-10">listeners</span><span class="hl-1">[</span><span class="hl-13">0</span><span class="hl-1">];</span><br/><br/><span class="hl-12">// Logs "log once" to the console and does not unbind the `once` event</span><br/><span class="hl-10">logFnWrapper</span><span class="hl-1">.</span><span class="hl-0">listener</span><span class="hl-1">();</span><br/><br/><span class="hl-12">// Logs "log once" to the console and removes the listener</span><br/><span class="hl-0">logFnWrapper</span><span class="hl-1">();</span><br/><br/><span class="hl-10">emitter</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'log'</span><span class="hl-1">, () </span><span class="hl-8">=></span><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'log persistently'</span><span class="hl-1">));</span><br/><span class="hl-12">// Will return a new Array with a single function bound by `.on()` above</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">newListeners</span><span class="hl-1"> = </span><span class="hl-10">emitter</span><span class="hl-1">.</span><span class="hl-0">rawListeners</span><span class="hl-1">(</span><span class="hl-2">'log'</span><span class="hl-1">);</span><br/><br/><span class="hl-12">// Logs "log persistently" twice</span><br/><span class="hl-10">newListeners</span><span class="hl-1">[</span><span class="hl-13">0</span><span class="hl-1">]();</span><br/><span class="hl-10">emitter</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'log'</span><span class="hl-1">);</span>
|
||||
<pre><code class="js"><span class="hl-0">import</span><span class="hl-1"> { </span><span class="hl-2">EventEmitter</span><span class="hl-1"> } </span><span class="hl-0">from</span><span class="hl-1"> </span><span class="hl-3">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">emitter</span><span class="hl-1"> = </span><span class="hl-4">new</span><span class="hl-1"> </span><span class="hl-6">EventEmitter</span><span class="hl-1">();</span><br/><span class="hl-2">emitter</span><span class="hl-1">.</span><span class="hl-6">once</span><span class="hl-1">(</span><span class="hl-3">'log'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'log once'</span><span class="hl-1">));</span><br/><br/><span class="hl-7">// Returns a new Array with a function `onceWrapper` which has a property</span><br/><span class="hl-7">// `listener` which contains the original listener bound above</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">listeners</span><span class="hl-1"> = </span><span class="hl-2">emitter</span><span class="hl-1">.</span><span class="hl-6">rawListeners</span><span class="hl-1">(</span><span class="hl-3">'log'</span><span class="hl-1">);</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">logFnWrapper</span><span class="hl-1"> = </span><span class="hl-2">listeners</span><span class="hl-1">[</span><span class="hl-13">0</span><span class="hl-1">];</span><br/><br/><span class="hl-7">// Logs "log once" to the console and does not unbind the `once` event</span><br/><span class="hl-2">logFnWrapper</span><span class="hl-1">.</span><span class="hl-6">listener</span><span class="hl-1">();</span><br/><br/><span class="hl-7">// Logs "log once" to the console and removes the listener</span><br/><span class="hl-6">logFnWrapper</span><span class="hl-1">();</span><br/><br/><span class="hl-2">emitter</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'log'</span><span class="hl-1">, () </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'log persistently'</span><span class="hl-1">));</span><br/><span class="hl-7">// Will return a new Array with a single function bound by `.on()` above</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">newListeners</span><span class="hl-1"> = </span><span class="hl-2">emitter</span><span class="hl-1">.</span><span class="hl-6">rawListeners</span><span class="hl-1">(</span><span class="hl-3">'log'</span><span class="hl-1">);</span><br/><br/><span class="hl-7">// Logs "log persistently" twice</span><br/><span class="hl-2">newListeners</span><span class="hl-1">[</span><span class="hl-13">0</span><span class="hl-1">]();</span><br/><span class="hl-2">emitter</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'log'</span><span class="hl-1">);</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
</div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span><a id="rawListeners.rawListeners-1.K-10" class="tsd-anchor"></a><span class="tsd-kind-type-parameter">K</span></span></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><span class="tsd-kind-parameter">eventName</span>: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Function</span><span class="tsd-signature-symbol">[]</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-11" class="tsd-anchor"></a>Since<a href="#Since-11" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v9.4.0</p>
|
||||
@@ -119,7 +119,7 @@ component or module (e.g. sockets or file streams).</p>
|
||||
<p>Returns a reference to the <code>EventEmitter</code>, so that calls can be chained.</p>
|
||||
</div><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Optional</code><span class="tsd-kind-parameter">eventName</span>: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">symbol</span></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">this</span></h4><div class="tsd-comment tsd-typography"><h4 class="tsd-anchor-link"><a id="Since-12" class="tsd-anchor"></a>Since<a href="#Since-12" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>v0.1.26</p>
|
||||
</div><aside class="tsd-sources"><p>Inherited from <a href="_internal_.EventEmitter.html">EventEmitter</a>.<a href="_internal_.EventEmitter.html#removeAllListeners">removeAllListeners</a></p><ul><li>Defined in node_modules/@types/node/events.d.ts:758</li></ul></aside></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><a id="removeListener" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span>remove<wbr/>Listener</span><a href="#removeListener" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-anchor-link"><a id="removeListener.removeListener-1" class="tsd-anchor"></a><span class="tsd-kind-call-signature">remove<wbr/>Listener</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="_internal_.ReadableStream.html#removeListener.removeListener-1.K-11">K</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">eventName</span>, <span class="tsd-kind-parameter">listener</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">this</span><a href="#removeListener.removeListener-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Removes the specified <code>listener</code> from the listener array for the event named <code>eventName</code>.</p>
|
||||
<pre><code class="js"><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-0">callback</span><span class="hl-1"> = (</span><span class="hl-10">stream</span><span class="hl-1">) </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">};</span><br/><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">, </span><span class="hl-10">callback</span><span class="hl-1">);</span><br/><span class="hl-12">// ...</span><br/><span class="hl-10">server</span><span class="hl-1">.</span><span class="hl-0">removeListener</span><span class="hl-1">(</span><span class="hl-2">'connection'</span><span class="hl-1">, </span><span class="hl-10">callback</span><span class="hl-1">);</span>
|
||||
<pre><code class="js"><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-6">callback</span><span class="hl-1"> = (</span><span class="hl-2">stream</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'someone connected!'</span><span class="hl-1">);</span><br/><span class="hl-1">};</span><br/><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">, </span><span class="hl-2">callback</span><span class="hl-1">);</span><br/><span class="hl-7">// ...</span><br/><span class="hl-2">server</span><span class="hl-1">.</span><span class="hl-6">removeListener</span><span class="hl-1">(</span><span class="hl-3">'connection'</span><span class="hl-1">, </span><span class="hl-2">callback</span><span class="hl-1">);</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
<p><code>removeListener()</code> will remove, at most, one instance of a listener from the
|
||||
@@ -129,7 +129,7 @@ called multiple times to remove each instance.</p>
|
||||
<p>Once an event is emitted, all listeners attached to it at the
|
||||
time of emitting are called in order. This implies that any <code>removeListener()</code> or <code>removeAllListeners()</code> calls <em>after</em> emitting and <em>before</em> the last listener finishes execution
|
||||
will not remove them from<code>emit()</code> in progress. Subsequent events behave as expected.</p>
|
||||
<pre><code class="js"><span class="hl-9">import</span><span class="hl-1"> { </span><span class="hl-10">EventEmitter</span><span class="hl-1"> } </span><span class="hl-9">from</span><span class="hl-1"> </span><span class="hl-2">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-8">class</span><span class="hl-1"> </span><span class="hl-15">MyEmitter</span><span class="hl-1"> </span><span class="hl-8">extends</span><span class="hl-1"> </span><span class="hl-15">EventEmitter</span><span class="hl-1"> {}</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">myEmitter</span><span class="hl-1"> = </span><span class="hl-8">new</span><span class="hl-1"> </span><span class="hl-0">MyEmitter</span><span class="hl-1">();</span><br/><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-0">callbackA</span><span class="hl-1"> = () </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'A'</span><span class="hl-1">);</span><br/><span class="hl-1"> </span><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">removeListener</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">, </span><span class="hl-10">callbackB</span><span class="hl-1">);</span><br/><span class="hl-1">};</span><br/><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-0">callbackB</span><span class="hl-1"> = () </span><span class="hl-8">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'B'</span><span class="hl-1">);</span><br/><span class="hl-1">};</span><br/><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">, </span><span class="hl-10">callbackA</span><span class="hl-1">);</span><br/><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">, </span><span class="hl-10">callbackB</span><span class="hl-1">);</span><br/><br/><span class="hl-12">// callbackA removes listener callbackB but it will still be called.</span><br/><span class="hl-12">// Internal listener array at time of emit [callbackA, callbackB]</span><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">);</span><br/><span class="hl-12">// Prints:</span><br/><span class="hl-12">// A</span><br/><span class="hl-12">// B</span><br/><br/><span class="hl-12">// callbackB is now removed.</span><br/><span class="hl-12">// Internal listener array [callbackA]</span><br/><span class="hl-10">myEmitter</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'event'</span><span class="hl-1">);</span><br/><span class="hl-12">// Prints:</span><br/><span class="hl-12">// A</span>
|
||||
<pre><code class="js"><span class="hl-0">import</span><span class="hl-1"> { </span><span class="hl-2">EventEmitter</span><span class="hl-1"> } </span><span class="hl-0">from</span><span class="hl-1"> </span><span class="hl-3">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-4">class</span><span class="hl-1"> </span><span class="hl-15">MyEmitter</span><span class="hl-1"> </span><span class="hl-4">extends</span><span class="hl-1"> </span><span class="hl-15">EventEmitter</span><span class="hl-1"> {}</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">myEmitter</span><span class="hl-1"> = </span><span class="hl-4">new</span><span class="hl-1"> </span><span class="hl-6">MyEmitter</span><span class="hl-1">();</span><br/><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-6">callbackA</span><span class="hl-1"> = () </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'A'</span><span class="hl-1">);</span><br/><span class="hl-1"> </span><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">removeListener</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">, </span><span class="hl-2">callbackB</span><span class="hl-1">);</span><br/><span class="hl-1">};</span><br/><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-6">callbackB</span><span class="hl-1"> = () </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'B'</span><span class="hl-1">);</span><br/><span class="hl-1">};</span><br/><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">, </span><span class="hl-2">callbackA</span><span class="hl-1">);</span><br/><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">, </span><span class="hl-2">callbackB</span><span class="hl-1">);</span><br/><br/><span class="hl-7">// callbackA removes listener callbackB but it will still be called.</span><br/><span class="hl-7">// Internal listener array at time of emit [callbackA, callbackB]</span><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">);</span><br/><span class="hl-7">// Prints:</span><br/><span class="hl-7">// A</span><br/><span class="hl-7">// B</span><br/><br/><span class="hl-7">// callbackB is now removed.</span><br/><span class="hl-7">// Internal listener array [callbackA]</span><br/><span class="hl-2">myEmitter</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'event'</span><span class="hl-1">);</span><br/><span class="hl-7">// Prints:</span><br/><span class="hl-7">// A</span>
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||||
</code><button type="button">Copy</button></pre>
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||||
|
||||
<p>Because listeners are managed using an internal array, calling this will
|
||||
@@ -140,7 +140,7 @@ the <code>emitter.listeners()</code> method will need to be recreated.</p>
|
||||
<p>When a single function has been added as a handler multiple times for a single
|
||||
event (as in the example below), <code>removeListener()</code> will remove the most
|
||||
recently added instance. In the example the <code>once('ping')</code> listener is removed:</p>
|
||||
<pre><code class="js"><span class="hl-9">import</span><span class="hl-1"> { </span><span class="hl-10">EventEmitter</span><span class="hl-1"> } </span><span class="hl-9">from</span><span class="hl-1"> </span><span class="hl-2">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-8">const</span><span class="hl-1"> </span><span class="hl-11">ee</span><span class="hl-1"> = </span><span class="hl-8">new</span><span class="hl-1"> </span><span class="hl-0">EventEmitter</span><span class="hl-1">();</span><br/><br/><span class="hl-8">function</span><span class="hl-1"> </span><span class="hl-0">pong</span><span class="hl-1">() {</span><br/><span class="hl-1"> </span><span class="hl-10">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">'pong'</span><span class="hl-1">);</span><br/><span class="hl-1">}</span><br/><br/><span class="hl-10">ee</span><span class="hl-1">.</span><span class="hl-0">on</span><span class="hl-1">(</span><span class="hl-2">'ping'</span><span class="hl-1">, </span><span class="hl-10">pong</span><span class="hl-1">);</span><br/><span class="hl-10">ee</span><span class="hl-1">.</span><span class="hl-0">once</span><span class="hl-1">(</span><span class="hl-2">'ping'</span><span class="hl-1">, </span><span class="hl-10">pong</span><span class="hl-1">);</span><br/><span class="hl-10">ee</span><span class="hl-1">.</span><span class="hl-0">removeListener</span><span class="hl-1">(</span><span class="hl-2">'ping'</span><span class="hl-1">, </span><span class="hl-10">pong</span><span class="hl-1">);</span><br/><br/><span class="hl-10">ee</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'ping'</span><span class="hl-1">);</span><br/><span class="hl-10">ee</span><span class="hl-1">.</span><span class="hl-0">emit</span><span class="hl-1">(</span><span class="hl-2">'ping'</span><span class="hl-1">);</span>
|
||||
<pre><code class="js"><span class="hl-0">import</span><span class="hl-1"> { </span><span class="hl-2">EventEmitter</span><span class="hl-1"> } </span><span class="hl-0">from</span><span class="hl-1"> </span><span class="hl-3">'node:events'</span><span class="hl-1">;</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-5">ee</span><span class="hl-1"> = </span><span class="hl-4">new</span><span class="hl-1"> </span><span class="hl-6">EventEmitter</span><span class="hl-1">();</span><br/><br/><span class="hl-4">function</span><span class="hl-1"> </span><span class="hl-6">pong</span><span class="hl-1">() {</span><br/><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-6">log</span><span class="hl-1">(</span><span class="hl-3">'pong'</span><span class="hl-1">);</span><br/><span class="hl-1">}</span><br/><br/><span class="hl-2">ee</span><span class="hl-1">.</span><span class="hl-6">on</span><span class="hl-1">(</span><span class="hl-3">'ping'</span><span class="hl-1">, </span><span class="hl-2">pong</span><span class="hl-1">);</span><br/><span class="hl-2">ee</span><span class="hl-1">.</span><span class="hl-6">once</span><span class="hl-1">(</span><span class="hl-3">'ping'</span><span class="hl-1">, </span><span class="hl-2">pong</span><span class="hl-1">);</span><br/><span class="hl-2">ee</span><span class="hl-1">.</span><span class="hl-6">removeListener</span><span class="hl-1">(</span><span class="hl-3">'ping'</span><span class="hl-1">, </span><span class="hl-2">pong</span><span class="hl-1">);</span><br/><br/><span class="hl-2">ee</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'ping'</span><span class="hl-1">);</span><br/><span class="hl-2">ee</span><span class="hl-1">.</span><span class="hl-6">emit</span><span class="hl-1">(</span><span class="hl-3">'ping'</span><span class="hl-1">);</span>
|
||||
</code><button type="button">Copy</button></pre>
|
||||
|
||||
<p>Returns a reference to the <code>EventEmitter</code>, so that calls can be chained.</p>
|
||||
|
||||
Reference in New Issue
Block a user