Page 89 - HTML5

Chapter 21: Include JavaScript Code in HTML

Syntax

• <script type="text/javascript"> //some code </script>
• <script type="text/javascript" src="URL"></script>
• <script type="text/javascript" src="URL" async>//async code</script>

Parameters

Attribute Details

src Specifies the path to a JavaScript file. Either a relative or absolute URL.

Specifies the MIME type. This attribute is required in HTML4, but optional in
type
HTML5.

Specifies that the script shall be executed asynchronously (only for external
async
scripts). This attribute does not require any value (except of XHTML).

Specifies that the script shall be executed when the page has finished parsing
defer (only for external scripts). This attribute does not require any value (except of
XHTML).

charset Specifies the character encoding used in an external script file, e.g. UTF-8

crossorigin How the element handles crossorigin requests

nonce Cryptographic nonce used in Content Security Policy checks CSP3

Remarks

If the embed JavaScript code (file) is used to manipulate
http://stackoverflow.com/documentation/javascript/503/document-object-model-dom Elements,
place your <script></script> tags right before the closing </body> tag or use JavaScript methods
or libraries (such as jQuery to handle a variety of browsers) that makes sure the DOM is read and
ready to be manipulated.

Examples

Linking to an external JavaScript file

<script src="example.js"></script>

https://riptutorial.com/ 73