How to capture a backspace on the onkeydown event

Question

I have a function that is triggered by the onkeydown event of a textbox. How can I tell if the user has hit either the backspace key or the del key?

Answer 1

Try this:

document.addEventListener("keydown", KeyCheck);  //or however you are calling your method function KeyCheck(event) {    var KeyID = event.keyCode;    switch(KeyID)    {       case 8:       alert("backspace");       break;        case 46:       alert("delete");       break;       default:       break;    } }