Skip to content

Instantly share code, notes, and snippets.

What would you like to do?
CustomEvent() polyfill
* CustomEvent() polyfill
if (typeof window.CustomEvent === "function") return false;
function CustomEvent(event, params) {
params = params || { bubbles: false, cancelable: false, detail: undefined };
var evt = document.createEvent('CustomEvent');
evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
return evt;
CustomEvent.prototype = window.Event.prototype;
window.CustomEvent = CustomEvent;
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.