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In order to avoid displaying a large amount of code in HTML, we generally choose to put the js script into a separate file, and then js file is imported into HTML, which can make the HTML file more concise. This article mainly introduces two ways to import js script: : Traditional import, module import.
First confirm the location of the js script that needs to be imported. This article is in the same path as the HTML file.
1. Traditional import:
JS script content:
//文件名：example.js let a="呵呵姑娘";
HTML content:
<!-- example.html -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script src="./example.js"></script>
<script>
console.log(a);
</script>
</body>
</html> 2. Module import:
JS script content:
//文件名：example.js
let a="呵呵姑娘";
export {a}; HTML content:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script type="module">
import {a} from './example.js';
console.log(a);
</script>
</body>
</html>Recommended: "2021 js interview questions and answers (large summary)"《js tutorial》
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