keydown event not fired, why?

Question

In JavaScript, I hold two keys down, and keydown is fired perfectly. When I release one of the keys, keyup is fired. So far so good. But I am still holding one key down, so why arent keydown fired? I need this to happen in my game. Am I doing something wrong? Is this the expected response? Is there a work around or something?

window.addEventListener("keydown",
function (e) {
    console.log('down');
}, false);

window.addEventListener('keyup',
function (e) {
    console.log('up');
}, false);

Answer 1

Looks to me like you're trying to do something like this:

 var down = false; var up = false; document.body.addEventListener('keydown', function (e) { if(e.which === 40) { down = true; } if(e.which === 38) { up = true; } }); document.body.addEventListener('keyup', function (e) { if(e.which === 40) { down = false; } if(e.which === 38) { up = false; } // logic here for one but not the other if(down && !up) { alert('down but not up!'); } });