JavaScript execute until keypress

Question

I want to execute a loop/action until a key is pressed and onpress I want to stop that action and call the function getKey. Can anybody suggest how to do this?<

Answer 1

Depends on how you loop. The easiest way is with an interval:

var interval = window.setInterval(function () {
    // do your thing, do your thing
}, 1000);

document.onkeypress = function () {
    if (/* some specific character was pressed */) {
        window.clearInterval(interval);

        // do some other thing, other thing
    }
};