Answers for "how to get which key is pressed in javascript"

js when key is pressed

document.addEventListener("keypress", function(event) {
	// do stuff
});

how to get which key is pressed in javascript

function myKeyPress(e){
  var keynum;

  if(window.event) { // IE                  
    keynum = e.keyCode;
  } else if(e.which){ // Netscape/Firefox/Opera                 
    keynum = e.which;
  }

  alert(String.fromCharCode(keynum));
}