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What are the three ways to use javascript?

青灯夜游Original: 2021-10-28 16:51:243091browse

Method: 1. Use it in the event attribute of the tag, the syntax "8748f9ad597df30f67f230c2f414f1a4"; 2. Write it in the script tag pair, the syntax "9eea5c1f09471d93f466f7b678f314f3"; 3. Use the "8f46e005a9c1806906f3c7d0c67a68462cacc6d41bbb37262a98f745aa00fbf0" statement.

The operating environment of this tutorial: Windows 7 system, JavaScript version 1.8.5, Dell G3 computer.

The usage of js is similar to css:

1. Inline

Use "";

<body onload="alert(&#39;hello world3&#39;)";>
</body>

## in the label attribute

#2. Embedded

Use script tag directly

<script>
alert("hello world2");
</script>

3. Linked

Use dc6ac8f2315a7115d9939bd34c8b8db6Introducing external .js files

<script type="text/javascript" src="js学习.js"></script>

js file code

alert("hello world 1");

[Recommended learning:

javascript advanced tutorial】

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