Nodejs Degree to Radian Convert toRoman( ()

Method Source Code

assert = require("assert");

Number.prototype.toRoman = (function () {
  var nmap = {//from   ww  w  . j a v  a  2s . c o  m
    M: 1000, CM: 900, D: 500, CD: 400, C: 100, XC: 90, L: 50, XL: 40, X: 10, IX: 9, V: 5, IV: 4, I: 1
  };

  var toRomanR = function toRomanR(num) {
    for (var a in nmap) {
      if (nmap[a] <= num) {
        return a + toRomanR(num - nmap[a]);
      }
    }
    return '';
  }

  return function toRoman() {
    return toRomanR(this);
  };
}());

assert.equal(Number(0).toRoman(),"");
assert.equal(Number(1).toRoman(),"I");
assert.equal(Number(20).toRoman(),"XX");
assert.equal(Number(34).toRoman(),"XXXIV");
assert.equal(Number(99).toRoman(),"XCIX");
assert.equal(Number(999).toRoman(),"CMXCIX");
assert.equal(Number(2000).toRoman(),"MM");
assert.equal(Number(2999).toRoman(),"MMCMXCIX");
assert.equal(Number(12000).toRoman(),"MMMMMMMMMMMM");

Related

1. toRadians()

   Number.prototype.toRadians = function() { 
     return this * Math.PI / 180; 
   

2. toRadians()

   function getHaversineDistance(point1, point2){  
     var R = 6372.8;
     var dLat = (point2.lat - point1.lat).toRadians();
       var dLon = (point2.lon - point1.lon).toRadians();
       var lat1 = point1.lat.toRadians();
       var lat2 = point2.lat.toRadians();
     var a = Math.sin(dLat/2) * Math.sin(dLat/2) + Math.sin(dLon/2) * Math.sin(dLon/2) * Math.cos(lat1) * Math.cos(lat2)
     var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a))
     return = R * c;   
   ...
   

3. toRadians()

   'use strict'
   Number.prototype.toRadians = function() {
     return this * Math.PI / 180;
   

4. toRadians()

   Number.prototype.toRadians = function() { 
       return (this.valueOf() * Math.PI) / 180; 
   

5. toReadableFileSize(bytes)

   function toReadableFileSize(bytes) {
     var i = 0;
     var byteUnits = [' bytes' , ' kB', ' MB', ' GB', ' TB', ' PB', ' EB', ' ZB', ' YB'];
     while (bytes > 1024) {
       bytes = bytes / 1024;
       i++;
     if (i > 0)
       return bytes.toFixed(1) + byteUnits[i];
   ...
   

6. toRoman()

   $(document) function() {
   Number.prototype.toRoman= function () {
       var num = Math.floor(this),
           val, s= '', i= 0,
           v = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1],
           r = ['M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I'];
       function toBigRoman(n) {
           var ret = '', n1 = '', rem = n;
           while (rem > 1000) {
   ...
   

7. toRoman()

   Number.prototype.toRoman= function () {
       var num = Math.floor(this), 
           val, s= '', i= 0, 
           v = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1], 
           r = ['M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I']; 
       function toBigRoman(n) {
           var ret = '', n1 = '', rem = n;
           while (rem > 1000) {
               var prefix = '', suffix = '', n = rem, s = '' + rem, magnitude = 1;
   ...
   

8. degToRad()

   Number.prototype.degToRad = function () {
     return this.valueOf() / 180 * Math.PI;
   

9. inRadians()

   Number.prototype.inRadians = function() {
       return this * Math.PI / 180.0;