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2 methods and precautions for adding script scripts in html

高洛峰
高洛峰Original
2017-03-08 15:35:012179browse

There are two ways to add script scripts in html, directly adding javascript code to html and adding external js files. These two methods are relatively common. You can choose freely according to your own needs.Add in html 3f1c4e4b6b16bbbd69b2ee476dc4f83aScript method:

1. You can directly add javascript code to html

code As follows:

<script type="text/javascript"> 
//javascritp代码 
</script>


When the interpreter embeds 3f1c4e4b6b16bbbd69b2ee476dc4f83a code, the processing of the html page will also be temporarily stopped.

2. Add external js files

The code is as follows:

<script type="text/javascript" src="外部.js代码的地址"></script>


Note Matters:
① In XHTML documents, the 2cacc6d41bbb37262a98f745aa00fbf0 tag can be omitted, for example:

##The code is as follows:

<script type="text/javascript" src="example.js" />

However, the 2cacc6d41bbb37262a98f745aa00fbf0 tag cannot be omitted in HTML. This tag does not comply with HTML specifications, so it cannot be correctly parsed by some browsers.

② It is best to place the 3f1c4e4b6b16bbbd69b2ee476dc4f83a tag before the 36cc49f0c466276486e50c850b7e4956 tag, so that the browser can load the page faster.

③When using 3f1c4e4b6b16bbbd69b2ee476dc4f83a to embed JavaScript code, do not appear the "2cacc6d41bbb37262a98f745aa00fbf0" string anywhere in the code. For example, the browser will generate an error when loading the following code:


The code is as follows:

<script type="text/javascript"> 
function function1(){ 
alert("</script>"); 
}

Because according to the rules for parsing embedded code, when the browser When the string "2cacc6d41bbb37262a98f745aa00fbf0" is encountered, it is considered to be the closing 2cacc6d41bbb37262a98f745aa00fbf0 tag. If you want to add the 2cacc6d41bbb37262a98f745aa00fbf0 string to your code, you can write it as 053a9cc4c2e9b9f6f911642332d34e85

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