Question

I am using Javascript and am creating my function within a closure, the problem I’m having is getting the id of the button the user has pressed.

The following code works when not in the closure, but when I place it inside it doesn’t seem to work.

Please help, thanks in advance for any help.

code to get id…

var id = event.target.id;

within closure…

var closure = (function(){

    var id;

    return{
         getId: function(){

             id = event.target.id;

         }
    };
}());

Answer 1

You’re merely assigning id to some value, but id is not accessible due to the closure.

You should instead return the value so that you can get the result and actually use it:

getId: function() {
    return event.target.id;
}

You also don’t need var id; since there is no reason for a local variable – you seem to just want to get the current ID. The id variable is nowhere accessible and you’re also not accessing it inside the closure, so it doesn’t serve any purpose here.