The syntax of script tag is given below:
Attributes of HTML script tag
|src||It specifies the URL of an external script file.||HTML 4.01, HTML5|
|type||It specifies the media type of the script.||HTML 4.01|
|async||It is a boolean value which specifies that the script is executed asynchronously.||HTML5|
|defer||It is a boolean value which is used to indicate that script is executed after document has been parsed.||HTML 4.01, HTML5|
Usage of script tag
There can be two usage of HTML script tag:
- to embed script code
- to link script file
Embed script code
The script tag can be used within <body> or <head> tag to embed the scripting code. Let’s see the example to have script tag within HTML body.
Let’s see the example to have script tag within HTML head tag.
Link script file
The script tag can be used to link external script file by src attribute. It must be used within the <head> tag only.