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<strong class="sidebar-title">开始使用</strong><a href="intro-to-liquid.html" class="sidebar-link">Liquid 简介</a><a href="setup.html" class="sidebar-link">安装</a><a href="options.html" class="sidebar-link">选项</a><a href="render-file.html" class="sidebar-link">文件渲染</a><a href="partials-and-layouts.html" class="sidebar-link">引用/继承</a><a href="use-in-expressjs.html" class="sidebar-link">Express.js 中使用</a><strong class="sidebar-title">高级主题</strong><a href="caching.html" class="sidebar-link">缓存</a><a href="register-filters-tags.html" class="sidebar-link">注册标签/过滤器</a><a href="access-scope-in-filters.html" class="sidebar-link">过滤器里访问上下文</a><a href="parse-parameters.html" class="sidebar-link">参数解析</a><a href="render-tag-content.html" class="sidebar-link">渲染标签内容</a><a href="sync-and-async.html" class="sidebar-link">同步和异步</a><a href="whitespace-control.html" class="sidebar-link">换行和缩进</a><a href="plugins.html" class="sidebar-link">插件</a><a href="operators.html" class="sidebar-link">运算符</a><a href="truthy-and-falsy.html" class="sidebar-link">真和假</a><strong class="sidebar-title">其他</strong><a href="migrate-to-9.html" class="sidebar-link">迁移到 LiquidJS 9</a><a href="changelog.html" class="sidebar-link">更新日志</a><a href="differences.html" class="sidebar-link current">与 Shopify/liquid 的不同</a><a href="contribution-guidelines.html" class="sidebar-link">贡献指南</a>
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<h1 class="article-title" itemprop="name">和 Shopify/liquid 的区别</h1>
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<a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/edit/master/docs/source/zh-cn/tutorials/differences.md" class="article-edit-link" title="改进这篇文档"><i class="icon-pencil"></i></a>
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<p><a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/Shopify/liquid">Shopify/liquid</a> 中的所有标签和过滤器 LiquidJS 都支持，但不包括 Shopify 主题中业务逻辑相关的标签和过滤器（如果你在找这些标签可以参考 <a href="./plugins.html#插件列表">插件列表</a>，也欢迎把你的插件添加到列表中）。尽管原则上我们尽力兼容于 Shopify/liquid，但仍然存在一些区别：</p>
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<ul>
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<li>真和假。在 LiquidJS 中 <code>undefined</code>, <code>null</code>, <code>false</code> 是假，之外的都是真；在 Ruby 中 <code>nil</code> 和 <code>false</code> 是假，其他都是真。见 <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/pull/26">#26</a>。</li>
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<li>数字。JavaScript 不区分浮点数和整数，因此缺失一部分整数算术，见 <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/issues/59">#59</a>。此外 <code>size</code> 过滤器作用于数字时总是返回零，而不是 Ruby 中的浮点数或整数的内存大小。</li>
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<li>Drop 中的 <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/Shopify/liquid/wiki/Introduction-to-Drops">.to_liquid()</a> 替换为 <code>.toLiquid()</code>。</li>
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<li>数据的 <a target="_blank" rel="noopener external nofollow noreferrer" href="https://www.rubydoc.info/gems/liquid/Liquid/Drop">.to_s()</a> 替换为 <code>.toString()</code>。</li>
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<li>对象的迭代顺序。JavaScript 对象的迭代顺序是插入顺序和数字键递增顺序的组合，但 Ruby Hash 中只是插入顺序（JavaScript 字面量 Object 和 Ruby 字面量 Hash 的插入顺序解释也不同）。</li>
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<li>排序稳定性。shopify/liquid 和 LiquidJS 都没有定义 <a href="https://liquidjs.com/filters/sort.html">sort</a> 过滤器的稳定性在，它取决于 Ruby/JavaScript 内置的排序算法，在 Node.js 12+ 和 Google Chrome 70+ LiquidJS 的排序是 <a target="_blank" rel="noopener external nofollow noreferrer" href="https://v8.dev/features/stable-sort">稳定的</a>。</li>
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<li>shopify/liquid 允许过滤器尾部的未匹配字符，但 LiquidJS 不允许。这就是说如果过滤器参数前忘记写冒号比如 <code>{{ "a b" | split " "}}</code> LiquidJS 会抛出异常。这是为了提升 Liquid 模板的易用性，参考 <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/issues/208">#208</a> 和 <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/issues/212">#212</a>。</li>
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<li>LiquidJS 有额外的标签：<a href="https://liquidjs.com/tags/layout.html">layout</a> 和相应的 <code>block</code>。</li>
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<li>LiquidJS 有额外的过滤器：<a href="https://liquidjs.com/filters/json.html">json</a>。</li>
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<time class="article-footer-updated" datetime="2022-01-28T17:27:04.497Z" itemprop="dateModified">上次更新：2022-01-28</time>
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© 2022 <a href="https://github.com/harttle/liquidjs/graphs/contributors" rel="external nofollow noreferrer" target="_blank">Harttle</a><br>
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