Where is the correct place to insert JavaScript

JavaScript
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Where is the correct place to insert JavaScript

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The best way is to use an external JavaScript file which adds its own event listeners (a.k.a. unobtrusive JavaScript). The script file should be linked via a SCRIPT element inside the HEAD part of the web page.

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
  <head>
    <title>...</title>
    <script type="text/javascript" src="/path/to/script.js"></script>
  </head>
  <body>
    ...
  </body>
</html>

It’s technically correct to insert SCRIPT elements in other places, too, but I wouldn’t recommend it since it ties the behaviour strongly to the markup.