Question

I have a function that I want it execute alternating processes every time it’s triggered. Any help on how I would achieve this would be great.

function onoff(){
    statusOn process /*or if on*/ statusOff process
}

Answer 1

One interesting aspect of JavaScript is that functions are first-class objects, meaning they can have custom properties:

function onoff() {
    onoff.enabled = !onoff.enabled;
    if(onoff.enabled) {
        alert('on');
    } else {
        alert('off');
    }
}

For this to work, your function should have a name. If your function is anonymous (unnamed), you can try to use arguments.callee to access it, but that is deprecated in the new ES5 standard and not possible when using its strict mode.