JavaScripts make HTML pages more dynamic and interactive.
Insert a script
How to insert a script into an HTML document.
Use of the <noscript>
tag
How to handle browsers that do not support scripting, or have scripting
disabled.
The <script> tag is used to define a client-side script, such as a JavaScript.
The <script> element either contains scripting statements or it points to an external script file through the src attribute.
Common uses for JavaScript are image manipulation, form validation, and dynamic changes of content.
The script below writes Hello JavaScript! into an HTML element with id="demo":
To learn all about JavaScript, visit our JavaScript Tutorial! |
The <noscript> tag is used to provide an alternate content for users that have disabled scripts in their browser or have a browser that doesn't support client-side scripting.
The <noscript> element can contain all the elements that you can find inside the <body> element of a normal HTML page.
The content inside the <noscript> element will only be displayed if scripts are not supported, or are disabled in the user's browser:
Here are some examples of what JavaScript can do:
Tag | Description |
---|---|
<script> | Defines a client-side script |
<noscript> | Defines an alternate content for users that do not support client-side scripts |