dom - cloning javascript event object

Question

Anybody know how to do a deep copy/cloning of a native javascript event object? I know I can create a new event object and set the appropriate properties manually to match the original event, but it'd be much easier if there's a way to just clone.

Answer 1

Above code will not copy any getters/setters properly. Try:

function cloneEvent(e) {
    if (e===undefined || e===null) return undefined;
    function ClonedEvent() {};  
    let clone=new ClonedEvent();
    for (let p in e) {
        let d=Object.getOwnPropertyDescriptor(e, p);
        if (d && (d.get || d.set)) Object.defineProperty(clone, p, d); else clone[p] = e[p];
    }
    Object.setPrototypeOf(clone, e);
    return clone;
}