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Prototype toPaddedString() Method
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This method converts the number into a string padded with 0s so that the string's length is at least equal to length. Takes an optional radix argument which specifies the base to use for conversion.
Syntax:
number.toPaddedString(length[, radix]);
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Return Value:
Example:
<html>
<head>
<title>Prototype examples</title>
<script type="text/javascript"
src="/javascript/prototype.js">
</script>
<script>
function showResult(){
alert("(13).toPaddedString(4) : " + (13).toPaddedString(4) );
alert("(13).toPaddedString(2) : " + (13).toPaddedString(2) );
alert("(13).toPaddedString(1) : " + (13).toPaddedString(1) );
alert("(13).toPaddedString(4, 2): " + (13).toPaddedString(4, 2));
}
</script>
</head>
<body>
<p>Click the button to see the result.</p>
<br />
<br />
<input type="button" value="Result" onclick="showResult();"/>
</body>
</html>
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To understand it in better way you can Try it yourself.
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