How to backspace and delete a string value using javascript

Question

hi Developers ,

i am developing a login page . when enter password i have to backspace and delete the string value by getting keycode ... i have tried lot, still am not getting exact output

i have added my code on below , if anyone know kindly suggest me to done this module...

Html Code

<center>

<input type=text id='password'>

<input type="text" id="hdnPassword" name="hdnPassword" />

<div></div>

</center>

Javascript

<script src="Scripts/Plugins/jQuery/jquery-2.2.3.min.js"></script>

<script type="text/javascript">

$(document).ready(function () {

var data = new Array();

$("#password").keypress(function (e) {

var char = String.fromCharCode(e.keyCode);

data.push(char);

var str = '';

for (i = 0; i < data.length; i++) {

str += data[i];

}

$("#hdnPassword").val(str);

document.addEventListener("keydown", KeyCheck); //or however you are calling your method

function KeyCheck(event) {

var KeyID = event.keyCode;

switch (KeyID) {

case 8:

// have to backspace the str value on this place

alert("backspace");

break;

case 46:

// have to delete the str value on this place

alert("delete");

break;

default:

break;

}

}

});

});

</script>

Thanking you

Regards

Paul.S