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document.currentScript

Returns the <script> element whose script is currently being processed.

Syntax

var curScriptElement = document.currentScript;

Example

This example checks to see if the script is being executed asynchronously:

if (document.currentScript.async) {
  console.log("Executing asynchronously");
} else {
  console.log("Executing synchronously");
}

View Live Examples

Notes

It's important to note that this will not reference the <script> element if the code in the script is being called as a callback or event handler; it will only reference the element while it's initially being processed.

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'Document.currentScript' in that specification.
Living Standard Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 29 Yes 4 No 16 8
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support Yes Yes Yes Yes Yes 8 ?

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/document/currentScript