Masking the Credit Card Numbers using JQuery - Solution4

Rajnilari2015
Posted by Rajnilari2015 under jQuery category on | Points: 40 | Views : 246
Suppose we have a textbox and we have to mask (with asterisk (*) character) a portion of the string (which is a credit card number) when user enter the values one after the other.
That means , if the user enters XXXX XXXX XXXX XXXX , the output will be XXXX XX** **** XXXX where X represents any valid number.
The below program will help to do so

<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.3.min.js"></script>
<script>
$(function () {
$("#txtCCN").keyup(function (e) {
var CCNValue = $(this).val();
addSpace.call(this, [4, 9, 14], CCNValue);
addMask.call(this, [7, 15], $(this).val());
});

function addSpace(spacePoints, value) {
for (var i = 0; i < spacePoints.length; i++) {
var point = spacePoints[i];
if (value.length > point && value.charAt(point) !== ' ')
$(this).val((value.substr(0, point) + " " + value.substr(point, value.length)));
}
}

function addMask(range, value) {
$("#txtCCN").val(value.substring(0, range[0]) + value.substring(range[0], range[1]).replace(/[0-9]/g, "*") + value.substring(range[1]));
}
});
</script>
</head>
<body>
Credit Card number: <input type="text" id="txtCCN" maxlength=19 />
</body>
</html>

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