How to fix the jslint message: variable is already defined

Question

I was trying to implement the following code:

var action = function (e) {     
    if (!e) {
        var e = window.event;
    }
    e.cancelBubble = true;
    i         


        

Answer 1

In the function, actually e has been defined as argument. so when you define some variable same as arguments, it will complains.