javascript - Delete instance of a class?

Question

I have a class that was created like this:

function T() {
    this.run = function() {
        if (typeof this.i === 'undefined')
            this.i = 0;
        if (this.i > 10) {
            // Destroy this instance
        }
        else {
            var t = this;
            this.i++;
            setTimeout( function() {
                t.run();
            }, 1000);
        }
    }
}

Then I initialize it like var x = new T();

I'm not sure how to destroy this instance from within itself once if reaches 10 iterations.

Also, I'm not sure how to destroy it externally either, in case I want to stop it before it reaches 10.

Answer 1

To delete an instance, in JavaScript, you remove all references pointing to it, so that the garbage collector can reclaim it.

This means you must know the variables holding those references.

If you just assigned it to the variable x, you may do

x = null;

or

x = undefined;

or

delete window.x;

but the last one, as precised by Ian, can only work if you defined x as an explicit property of window.