files/en-us/web/api/window/languagechange_event/index.md
{{APIRef}}
The languagechange event is fired at the global scope object when the user's preferred language changes.
Use the event name in methods like {{domxref("EventTarget.addEventListener", "addEventListener()")}}, or set an event handler property.
addEventListener("languagechange", (event) => { })
onlanguagechange = (event) => { }
A generic {{domxref("Event")}}.
In addition to the Window interface, the event handler property onlanguagechange is also available on the following targets:
You can use the languagechange event in an {{domxref("EventTarget/addEventListener", "addEventListener")}} method:
window.addEventListener("languagechange", () => {
console.log("languagechange event detected!");
});
Or use the onlanguagechange event handler property:
window.onlanguagechange = (event) => {
console.log("languagechange event detected!");
};
{{Specifications}}
{{Compat}}