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关于延迟加载JavaScript_javascript技巧

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Release： 2016-05-16 16:01:00
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JavaScript的延迟加载是那些在web上，能让你想抓狂地去寻找解决方案的问题之一。

很多人说“那就用defer”或“async”，甚至有些人说“那就将你的javascript代码放在页面代码底部”。

上述方法都不能解决在web页面完全加载后，再加载外部js的问题。上述方法也会偶尔让你收到Google页面速度测试工具的“延迟加载javascript”警告。所以这里的解决方案将是来自Google帮助页面的推荐方案。

如何延迟加载JavaScript

下面是Google推荐的代码。这些代码应被放置在

Related labels：
javascript Lazy loading
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