Window: hashchange event
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The hashchange event is fired when the fragment identifier of the URL has changed (the part of the URL beginning with and following the # symbol).
This event does not fire when the hash is modified using history.pushState() or history.replaceState().
Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("hashchange", (event) => { })
onhashchange = (event) => { }
Event type
A HashChangeEvent. Inherits from Event.
Event properties
HashChangeEvent.newURLRead only-
A string representing the new URL the window is navigating to.
HashChangeEvent.oldURLRead only-
A string representing the previous URL from which the window was navigated.
Event handler aliases
In addition to the Window interface, the event handler property onhashchange is also available on the following targets:
Examples
You can use the hashchange event in an addEventListener method:
window.addEventListener("hashchange", () => {
console.log("The hash has changed!");
});
Or use the onhashchange event handler property:
function locationHashChanged() {
if (location.hash === "#cool-feature") {
console.log("You're visiting a cool feature!");
}
}
window.onhashchange = locationHashChanged;
Specifications
| Specification |
|---|
| HTML # event-hashchange |
| HTML # handler-window-onhashchange |
Browser compatibility
| desktop | mobile | server | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
hashchange event
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Has more compatibility info.
See also
popstateevent