jQuery.Event.prototype.key  function     

Returns a string representation of the key pressed. The following listens to and prevents backspaces being pressed in inputs:

$("input").keypress(function(ev){
  if(ev.key() == '\b') {
   ev.preventDefault();
  }
});

Keys

The following describes the key values returned by jQuery.Event.key.

• \b - backspace
• \t - tab
• \r - enter key
• shift, ctrl, alt
• pause-break, caps, escape, num-lock, scroll-loc, print
• page-up, page-down, end, home, left, up, right, down, insert, delete
• ' ' - space
• 0-9 - number key pressed
• a-z - alpha key pressed
• num0-9 - number pad key pressed
• / ; : = , - . / ` [ \ ] ' "
• f1-12 - function keys pressed

Alternate keys

Use jQuery.event.key to set alternate key mappings for other locales.