javascript - Is it possible to force a certain js file to be loaded first?

Question

In addition to sequential loading, is there any other way to load a certain js file first?

Answer 1

You can consider using preload/prefetch, the usage method is as follows:

<link rel="preload" href="xx.js" as="script">

Related information:
Preload: What Is It Good For?
What should you know about Preload? Chinese translation of the above article

Answer 2

The simplest way is to write the priority js file in the page and load other js files in onload.

Answer 3

Little Red Book, Chapter 2, 2.1 "script" element async: Optional, indicating that the script should be downloaded immediately, but does not hinder other operations on the page. Give it a try.

Answer 4

script tag is placed first