only number or letter input in textbox using jquery example

only number or letter input in textbox using jquery example

you can set using this id and class name 

this example for if you want to input onlu number or letter other you can not enter this 

Please check this example

<script type="application/javascript">
$("input[name=number]").keydown(function (e) {

        // Allow: backspace, delete, tab, escape, enter and .
        if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 ||
             // Allow: Ctrl+A, Command+A
            (e.keyCode === 65 && (e.ctrlKey === true || e.metaKey === true)) ||
             // Allow: home, end, left, right, down, up
            (e.keyCode >= 35 && e.keyCode <= 40)) {
                 // let it happen, don't do anything
                 return;
        }
        // Ensure that it is a number and stop the keypress
        if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) {
            e.preventDefault();
        }
    });


// only letter input using jquery

$("input[name=letter]").on("keydown", function(event){
  // Allow controls such as backspace, tab etc.
  var arr = [8,9,16,17,20,35,36,37,38,39,40,45,46];

  // Allow letters
  for(var i = 65; i <= 90; i++){
    arr.push(i);
  }

  // Prevent default if not in array
  if(jQuery.inArray(event.which, arr) === -1){
    event.preventDefault();
  }
});

</script>

<input type="text" name="number" placeholder="only number input" />
<input type="text" name="letter" placeholder="only letter input" />