CODEWITHSUNDEEP
javascript
antonjs
antonjs

Reputation: 14318

How to fix the jslint message: variable is already defined

I was trying to implement the following code:

var action = function (e) {     
    if (!e) {
        var e = window.event;
    }
    e.cancelBubble = true;
    if (e.stopPropagation) {
        e.stopPropagation();
    }
    container.objet.hide();
}

But jslint complains about the following:

'e' is already defined. var e = window.event;

What is the best way to fix this problem?

Upvotes: 2

Views: 1173

Answers (2)

king zhang
king zhang

Reputation: 11

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

Upvotes: 0

Quentin
Quentin

Reputation: 943142

Using a named argument creates a locally scoped variable (which is what var does). Since you have an argument e and you use var e you are trying to create the variable twice.

Remove the var from where you use e the third time time.

var event = function (e) {      // First time
    if (!e) {                   // Second time
        e = window.event;       // Third time

Upvotes: 5

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