{"id":11714,"date":"2023-11-28T22:31:24","date_gmt":"2023-11-28T14:31:24","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11714"},"modified":"2023-11-30T18:43:23","modified_gmt":"2023-11-30T10:43:23","slug":"javascript-zhongjavascript-yan-chi-jia-zai-de-fang-2","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhongjavascript-yan-chi-jia-zai-de-fang-2\/","title":{"rendered":"JavaScript \u4e2d JavaScript \u5ef6\u8fdf\u52a0\u8f7d\u7684\u65b9\u5f0f\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<p>JavaScript \u4e2d\u6709\u591a\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5b9e\u73b0\u5ef6\u8fdf\u52a0\u8f7d\uff1a<\/p>\n<ol>\n<li>\n<p><strong>async \u548c defer \u5c5e\u6027\uff1a<\/strong> \u5728 <code>&lt;script&gt;<\/code> \u6807\u7b7e\u4e2d\u4f7f\u7528 <code>async<\/code> \u6216 <code>defer<\/code> \u5c5e\u6027\u6765\u5ef6\u8fdf\u811a\u672c\u7684\u6267\u884c\u3002<\/p>\n<ul>\n<li><code>async<\/code>\uff1a\u5f02\u6b65\u52a0\u8f7d\uff0c\u4e0d\u963b\u585e\u9875\u9762\u89e3\u6790\uff0c\u811a\u672c\u52a0\u8f7d\u5b8c\u6210\u540e\u7acb\u5373\u6267\u884c\uff0c\u4f46\u4e0d\u4fdd\u8bc1\u6267\u884c\u987a\u5e8f\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-html\">&lt;script src=&quot;example.js&quot; async&gt;&lt;\/script&gt;\n<\/code><\/pre>\n<ul>\n<li><code>defer<\/code>\uff1a\u5ef6\u8fdf\u52a0\u8f7d\uff0c\u811a\u672c\u52a0\u8f7d\u540e\u4f1a\u7b49\u5f85\u6574\u4e2a\u6587\u6863\u89e3\u6790\u5b8c\u6210\u540e\u518d\u6267\u884c\uff0c\u6309\u7167\u9875\u9762\u4e0a\u7684\u987a\u5e8f\u6267\u884c\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-html\">&lt;script src=&quot;example.js&quot; defer&gt;&lt;\/script&gt;\n<\/code><\/pre>\n<\/li>\n<li>\n<p><strong>\u52a8\u6001\u521b\u5efa <code>&lt;script&gt;<\/code> \u5143\u7d20\uff1a<\/strong> \u4f7f\u7528 JavaScript \u52a8\u6001\u521b\u5efa <code>&lt;script&gt;<\/code> \u5143\u7d20\u5e76\u63d2\u5165\u5230\u6587\u6863\u4e2d\uff0c\u4ee5\u5b9e\u73b0\u5ef6\u8fdf\u52a0\u8f7d\u3002<\/p>\n<pre><code class=\"language-javascript\">var script = document.createElement('script');\nscript.src = 'example.js';\ndocument.body.appendChild(script);\n<\/code><\/pre>\n<\/li>\n<li>\n<p><strong>Intersection Observer\uff08\u4ea4\u53c9\u89c2\u5bdf\u5668\uff09\uff1a<\/strong> \u53ef\u4ee5\u5229\u7528 Intersection Observer API \u5728\u5143\u7d20\u8fdb\u5165\u89c6\u53e3\u65f6\u52a8\u6001\u52a0\u8f7d JavaScript \u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p><strong>setTimeout \u548c defer \u52a0\u8f7d\uff1a<\/strong> \u4f7f\u7528 <code>setTimeout<\/code> \u51fd\u6570\u6765\u5ef6\u8fdf\u6267\u884c\u811a\u672c\u52a0\u8f7d\uff0c\u4e5f\u53ef\u4ee5\u7ed3\u5408 <code>defer<\/code> \u5c5e\u6027\u4e00\u8d77\u4f7f\u7528\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u8fd9\u4e9b\u65b9\u5f0f\u90fd\u53ef\u4ee5\u5ef6\u8fdf\u52a0\u8f7d JavaScript \u811a\u672c\uff0c\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\u9009\u62e9\u9002\u5408\u7684\u65b9\u5f0f\u3002\u5ef6\u8fdf\u52a0\u8f7d\u811a\u672c\u6709\u52a9\u4e8e\u63d0\u9ad8\u9875\u9762\u52a0\u8f7d\u6027\u80fd\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u4e00\u4e9b\u4e0d\u9700\u8981\u7acb\u5373\u6267\u884c\u7684\u811a\u672c\u6216\u5bf9\u7f51\u9875\u6838\u5fc3\u529f\u80fd\u4e0d\u662f\u5fc5\u9700\u7684\u811a\u672c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript \u4e2d\u6709\u591a\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5b9e\u73b0\u5ef6\u8fdf\u52a0\u8f7d\uff1a async \u548c defer \u5c5e\u6027\uff1a \u5728 &lt;scri [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-11714","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11714","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=11714"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11714\/revisions"}],"predecessor-version":[{"id":13647,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11714\/revisions\/13647"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11714"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11714"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}