JavaScript Number.prototype Property
JavaScript Number.prototype Property
The Number.prototype property allows you to add new properties and methods to JavaScript numbers.
Note: Prototype is a global property which is available with almost all JavaScript objects.
In the following example, we will create a new method called tenTimes(), which will multiply any given number by 10.
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<script>
Number.prototype.tenTimes = function() {
return this.valueOf() * 10;
};
var num = 5;
document.write(num.tenTimes());
</script>
</body>
</html>
Syntax
Number.prototype.name = value
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