HTML script tutorial detailed explanation

Online Example

Insert a script How to insert a script into an HTML document.

Use the tag How to deal with browsers that do not support scripts or have scripts disabled.

HTML tag

tag is used to define client-side scripts, such as JavaScript. The

element can contain script statements or point to an external script file through the src attribute.

JavaScript is most commonly used for image manipulation, form validation, and dynamic content updating.

The following script will output "Hello World!" to the browser:

Example

document.write("Hello World!") Copy after login Try it »

Tip: Learn more about Javascript For tutorials, check out the JavaScript Tutorial!

HTML Tag

The tag provides alternative content when scripts are not available, such as when scripts are disabled in the browser, or if the browser does not When client scripting is supported. The

element can contain all elements found within the body element of a normal HTML page.

Only when the browser does not support scripts or scripts are disabled, the content in the element will be displayed:

Example

document.write("Hello World!") Sorry, your browser does not support JavaScript! Copy after login Try it»

JavaScript experience (from this site’s javascript tutorial)

JavaScript example code:

JavaScript can be output directly in HTMl:

document.write(" This is a paragraph

"); Copy after login Try it»

JavaScript event response:

Click Me! Copy after login JavaScript processing HTML style:

document.getElementById("demo").style.color="#ff0000"; Copy after login [Related recommendations]

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