Nodejs Number Calculate setInRangesetInRange(lower, upper)

Method Source Code

Number.prototype.setInRange = function setInRange(lower, upper){
   /**/*from   w  ww  .j a  v  a 2  s .co  m*/
    * Function Number.prototype.setInRange
    * @name: Number.prototype.setInRange
    * @version: 0.9
    * @author: Korbinian Kapsner
    * @last modify: 04.08.2009
    * @description: Bsp.: (2).setInRange(0, 1) == 1; (2).setInRange(-3, 0) == 0
    * @parameter:
    *   lower: untere Grenze
    *   upper: obere Grenze
    */

   if (typeof lower === "undefined" || lower === null){
      lower = this;
   }
   if (typeof upper === "undefined" || upper === null){
      upper = this;
   }
   lower = parseFloat(lower) || 0;
   upper = parseFloat(upper) || 0;
   
   if (this < lower){
      return lower;
   }
   if (this > upper){
      return upper;
   }
   return this;
};

Related

1. safeDivideBy(x)

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

2. send(method)

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

3. 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;
   };
   

4. 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 = {
   ...
   

5. 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;
   ...
   

6. sigFig(precision)

   'use strict'
   Number.prototype.sigFig = function(precision){
       if( !precision ) precision = 2;
       var d = Math.pow(10, precision);
       return ( parseInt( this.valueOf() * d) / d ).toFixed(precision);
   };
   

7. simEq(number, digits)

   DEFAULT_DIGIT = 5;
   Number.prototype.simEq = function(number, digits) {
     digits = digits == undefined ? DEFAULT_DIGIT : digits;
     var n1 = this.toFixed(digits);
     var n2 = number.toFixed(digits);
     if (n1 == -0)
       n1 = 0;
     if (n2 == -0)
       n2 = 0;
   ...
   

8. sin()

   Number.prototype.sin = function() {
       return Math.sin(this);
   

9. smallerThan(num)

   Number.prototype.smallerThan = function(num) {
       return this < num;