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前端性能优化:Defer parsing of JavaScript

今天介绍 PageSpeed 的前端性能优化规则是:Defer parsing of JavaScript(暂缓 JavaScript 解析)。 Defer parsing of JavaScript 规则简介 In order to load a page, the browser must parse the contents of all <script> tags, which adds additional time to the page load. By minimizing the amount of JavaScript needed to render the page, and deferring … [阅读全文]