Nodejs Number Calculate rnd2()

Method Source Code

Number.prototype.rnd2 = function () {
   return Math.round(this.valueOf() * 100) / 100;
}

Related

1. range(a, b, i)

   Number.prototype.range  = function (a, b, i) {
       i = i || true;
       var min = Math.min.apply(Math, [a, b]),
           max = Math.max.apply(Math, [a, b]);
       return i ? this >= min && this <= max : this > min && this < max;
   };
   

2. repeat(n)

   Number.prototype.repeat = function(n){
     return this.toString().repeat(n);
   

3. repr()

   Number.prototype.repr = function () {
       var digits = (arguments.length > 0)? arguments[0] : undefined;
       if (typeof digits !== "number") {
           return Number(this);
       if (digits <= 0) {
           return Math.round(this);
       var factor = Math.pow(10, digits);
   ...
   

4. reprLocale()

   Number.prototype.reprLocale = function () {
       var result,
           digits = (arguments.length > 0)? arguments[0] : undefined,
           number = String(this.repr(digits)),
           int = number.split(".")[0],
           intparts = [],
           float = (number.indexOf(".") >= 0)? number.split(".")[1] : undefined;
       while (int.length > 0) {
           if (int.length <= 3) {
   ...
   

5. reverse()

   Number.prototype.reverse = function() {
     return parseInt(this.toString().split('').reverse().join(''), 10);
   

6. rotate()

   Number.prototype.rotate = Number.prototype.rotate || function () {
     return Math.floor((this / 10) + ((this % 10) * Math.pow(10, exports.digitLength(this) - 1)));
   };
   

7. safeDivideBy(x)

   Number.prototype.safeDivideBy = function(x) {
       var result = this.valueOf() / x;
       if(result === Infinity) {
           return 0;
       else {
           return result;
   

8. send(method)

   Number.prototype.send = function(method) {
     return this[method].call();
   };
   

9. separatorsseparators()

   Number.prototype.separators = function separators(){
     var string = this.toString();
     var x      = string.split('.');
     var x1     = x[0];
     var x2     = x.length > 1 ? '.' + x[1] : '';
     var regex  = /(\d+)(\d{3})/;
     while (regex.test(x1)) {
         x1 = x1.replace(regex, '$1' + ',' + '$2');
     return x1 + x2;
   };