The HashChangeEvent interface represents events that fire when the fragment identifier of the URL has changed.
The fragment identifier is the part of the URL that follows (and includes) the # symbol.
HashChangeEvent()Creates a new HashChangeEvent object.
This interface also inherits the properties of its parent, Event.
HashChangeEvent.newURL Read onlyThe new URL to which the window is navigating.
HashChangeEvent.oldURL Read onlyThe previous URL from which the window was navigated.
This interface has no methods of its own, but inherits the methods of its parent, Event.
function locationHashChanged() {
if (location.hash === "#some-cool-feature") {
someCoolFeature();
}
}
window.addEventListener("hashchange", locationHashChanged);