What are the ways to embed JavaScript into web pages?

Embedding method: 1. Use the "<script>js code</script>" statement; 2. Write the code into an external JavaScript file and embed it using the src attribute of the script tag; 3. In HTML In the tag, set the value of the event attribute to a code in the form of "JavaScript:xxx".

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

3 ways to embed JavaScript into web pages

1. Use <script>.…</script> tag pair

Write the js code directly in the script tag pair. The script tag can be written in either the head tag or the body tag. Note:

##If the JavaScript code is placed in the tag: it is mainly used to complete what is needed Background task

##If the JavaScript code is placed in the tag: used to display content.

#2. Introduce external JavaScript files

##This method is generally used in corporate work, because it ensures that the js code and html code are independent and have little mutual interference (low coupling).

#mylife.js file is as follows: Write the js code directly, and the <script>.…</script>b tag pair must not appear in the js file!

#3. Pseudo URL introduction

##This method generally appears in the format of "JavaScript: XXXXX", followed directly by the js code.

#[Recommended learning: javascript advanced tutorial

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