Nodejs String Reverse reverse()

Method Source Code

// https://www.codeeval.com/open_challenges/45/

String.prototype.reverse = function() {
    var s = this;
    var o = '';
    for (var i = s.length - 1; i >= 0; i--)
        o += s[i];/*from w  ww .  ja  v  a2 s.  co  m*/
    return o;
}

var fs  = require("fs");
fs.readFileSync(process.argv[2]).toString().split('\n').forEach(function (line) {
    line = line.trim();
    if( line != '' ){
        var cpt = 0;
        var number = Number(line);
        do{
            number += Number((number+'').reverse());
            cpt++;
        }while( number != (number+'').reverse() );
        console.log(cpt + ' ' + number);
    }
});

Related

1. reverse()

   String.prototype.reverse = function(){
     var charArray = this.split('');
     var charArrayLength = charArray.length;
     var reverseMessage = '';
     for(var i = charArrayLength-1;i>=0;i--){
       reverseMessage+=charArray[i];
     return reverseMessage;
   };
   ...
   

2. reverse()

   "use strict";
   String.prototype.reverse = function () {
       return this.split("").reverse().join("");
   var isPalindrom = function(n) {
     var s = n.toString();
     return s === s.reverse();
   var max = 0;
   ...
   

3. reverse()

   String.prototype.reverse = function() {
       var result = "";
       for (var i = this.length -1 ; i >= 0; i--){
           result += this.charAt(i);
       return result;
   };
   

4. reverse()

   String.prototype.reverse = function(){
     var newString = "";
     for (var i = this.length - 1; i >= 0; i--) {
       newString = newString + this[i];
     };
     return newString;
   var name = "freak yeah I\'m writing strings up in hurr!!"
   name.reverse();
   ...
   

5. reverse()

   String.prototype.reverse = function(){
     var returnedString = string.split('');
     returnedString.reverse();
     var string = this.join('');
   };
   String.prototype.reverse = function(){
     return this.split('').reverse().join('');
   var test = 'Cruncha muncha cruncha muncha fritos in my butt';
   ...
   

6. reverse()

   String.prototype.reverse = function() {
     var reverse = '';
     for (var i = this.length - 1; i >= 0; i--){
       reverse += this[i]
     return reverse;
   };
   

7. reverse()

   String.prototype.reverse = function()
     var s = '';
     var i = this.length;
     while (i > 0) {
       s += this.substring(i-1,i);
       i--;
     return s;
   ...
   

8. reverse()

   function reverseString(str) {
     var rstr = [];
     var splitStr = str.split('');
     for (i = splitStr.length -1; i >= 0; i--) {
       rstr.push(splitStr[i]);
     return rstr.join('');
   console.log(reverseString('myTest'));
   ...
   

9. reverse()

   String.prototype.reverse = function() {
     var splitext  = this.split("");
     var revertext = splitext.reverse();
     var reversed  = revertext.join("");
     return reversed;
   };