Javascript - Number prototype Property

The prototype constructor can add new properties and methods to JavaScript Number class.

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Description

The prototype constructor can add new properties and methods to JavaScript Number class.

Syntax 

Number.prototype.name = value

Example

The following code shows how to create a new number method that returns a number's half value:

Demo

Number.prototype.myMethod = function() {
    return this.valueOf() / 2;
};

var n = 55;//from   w  w  w .ja v a2  s. c  o m
console.log(n.myMethod());

Result