script
Summary
The script element enables dynamic script and data blocks to be included in documents. It can contain code/data directly or it can link to external sources. It is mainly used with JavaScript.
Overview Table
Attributes
| Property | Description | Used with inline scripts |
|---|---|---|
| src | The URL to an external file that contains the source code or data. | No |
| type | The MIME type for the script. Required in HTML 4, defaults to text/javascript in HTML 5. For JavaScript, this should always be set to application/javascript since RFC4329. | Yes |
| charset | Sets or retrieves the script’s character encoding. You can’t use the type attribute with this attribute. | No |
| language | The programming language for the associated scripting engine. Depracated, use type instead. | Yes |
| defer | Specifies that script should be executed after the document has been parsed. | No |
| async | Specifies that the script should be executed asynchronously, as soon as it becomes available. | No |
| crossorigin | Whether or not script error information will be revealed from the script(This is used only when scripts are being loaded from different origins). | No |
Examples
Loading an external script.
<script src="http://example.com/Script/Url/here.js" type="application/javascript"></script>
Writing an inline script.
<script type="application/javascript">
//Do stuff...
</script>
Notes
Code within the script block that is not contained within a function is executed immediately as the document is loaded.When the Type attribute is unset on the script object, then text/javascript is used. The order of the script objects in a document can also be important, especially if scripting event handlers are assigned to one or more elements in the document. Using async="async" didn’t work in some older browser, instead async="true" was used.
Related specifications
See also
Related articles
HTML
script
Other articles
Related pages
XML Data Islands
Attributions
Microsoft Developer Network: [Windows Internet Explorer API reference Article]