JS Function self-disable for a specific time after execution

Question

I'm trying to create a function which is executed by a keypress and disabled for a specific time after execution.

function do_something() {
    console.log('lorem ipsum');
}

document.onkeypress = function(e) {
  if (e.keyCode == '32') {
    do_something();
  }
}

Is there any way to disable it for (let's say) 2 seconds after every execution?

Answer 1

Yes, there is a way: use a Timeout to temporally set a boolean to certain value and then check it's value before calling do_something().

Example:

let cooldown = false;
const RECHARGE_TIME = 2000; //ms

function do_something() {
    console.log('lorem ipsum');
}

document.onkeypress = function(e) {
    if (!cooldown && e.keyCode == '32') {
        do_something();
        startCooldown();
    }
}

function startCooldown() {
    cooldown = true;
    setTimeout (function(){ cooldown = false}, RECHARGE_TIME);
}

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EDIT: as Mosè Raguzzini noted: Depending on how important accuracy is, maybe this isn't the best method, since (as you can see here) it can be inacurate.