JAVASCRIPT

enter event in jquery

$('#textbox').keypress(function(event){
	var keycode = (event.keyCode ? event.keyCode : event.which);
	if(keycode == '13'){
		alert('You pressed a "enter" key in textbox');
	}
});

block enter key using jquery

If keyCode is not caught, catch which:

$('#formid').on('keyup keypress', function(e) {
  var keyCode = e.keyCode || e.which;
  if (keyCode === 13) { 
    e.preventDefault();
    return false;
  }
});

jquery key enter events

$('#twitterSearch').keydown(function(event){ 
    var id = event.key || event.which || event.keyCode || 0;   
    if (id == 13) {
        $('#startSearch').trigger('click');
    }
});