Nodejs Number Sum sum(num)

Here you can find the source of sum(num)

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Method Source Code

Number.prototype.sum = function(num) {
    return this + num;
};

Related

  1. sum( number )
    Number.prototype.sum = function ( number ) {
    return this + Number(number);
};
var one = 1;
console.log( one.sum(1) );
console.log( one.sum(" 3.04 ") );
console.log( one.sum("w") );
  2. sum(a)
    Number.prototype.sum = function (a) {
    return a = a || 0,this + a;
num = 4;
num.sum(4).sum(5).sum(6);