Is it advisable to separate JavaScript code into external files when working with PHP?

It is advisable to separate JavaScript code into external files when working with PHP for better organization, reusability, and maintainability of the code. This approach also helps in improving the overall performance of the web application by allowing browsers to cache the JavaScript files separately. 

<!DOCTYPE html>
<html>
<head>
    <title>Separating JavaScript into External Files</title>
    <script src="external.js"></script>
</head>
<body>
    <h1>Hello, World!</h1>
</body>
</html>

Keywords

JavaScript external files PHP code organization performance

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