How to detect three pressed keys on keybord by jquery and javascript

Question

I need to detect which keys are pressed in keyboard to do some action upon that
so I wrote script like this

$(document).keyup(function(e){  
   var map = {18: false, 17: false, 65: false};
   if (e.keyCode in map) {
     map[e.keyCode] = true;
     if (map[18] && map[17] && map[65]) {
        alert("Pressed Alt+Ctrl+a");
     }
   }
});

but this script doesn't work
so can any on help me in this please

See also [Detect keypress combination series with Javascript](http://stackoverflow.com/questions/10061084/detect-keypress-combination-series-with-javascript). — Zakaria Acharki, Jul 14 '15 at 12:53
You could also use `Set` like so `var keyPress=new Set();$(document).keydown(function(e){ keyPress.add(e.keyCode);if (keyPress.has(18)&&keyPress.has(17)&&keyPress.has(65)) {alert("Pressed Alt+Ctrl+a"); }}); $(document).keyup(function(e){ keyPress.delete(e.keyCode);});` — depperm, Jul 14 '15 at 13:00

score 1 · Accepted Answer · answered Jul 14 '15 at 12:48

1

the e object will provide e.ctrlKey aswell as e.altKey and e.shiftKey

you just need to test for this: e.ctrlKey && e.altKey && e.which == 65

answered Jul 14 '15 at 12:48

GottZ

4,824
1
36
46

This one is working Thanks alot – Mohamed Salah Jul 14 '15 at 13:27

How to detect three pressed keys on keybord by jquery and javascript

1 Answers1