Nodejs Number Calculate safeDivideBy(x)

Method Source Code

Number.prototype.safeDivideBy = function(x) {

    var result = this.valueOf() / x;
    if(result === Infinity) {
        return 0;
    }//ww w . j a  v a 2 s  . c o  m
    else {
        return result;
    }
}

Related

1. 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);
   ...
   

2. 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) {
   ...
   

3. reverse()

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

4. rnd2()

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

5. rotate()

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

6. send(method)

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

7. 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;
   };
   

8. set(key, value)

   'use strict';
   const assert = require('assert');
   const nan = Symbol('NaN');
   const define = Object.defineProperty;
   Number.prototype[nan] = Object.create(null);
   Number.prototype.set = function (key, value) {
     if (null == this || !isNaN(this)) { return this; }
     const space = this[nan];
     const accessor = {
   ...
   

9. setInCirclesetInCircle(lower, upper)

   Number.prototype.setInCircle = function setInCircle(lower, upper){
     var zahl = this;
     if (lower === upper){
       return lower;
     if (lower > upper){
       var l = lower;
       lower = upper;
       upper = l;
   ...