Contents

'use strict';

var LETTERS = 'abcdefghijklmnopqrstuvwxyz';
var REVERSED_LETTERS = 'zyxwvutsrqponmlkjihgfedcba';

function insertSpacing(s, interval) {
  var matcher = new RegExp('.{1,' + interval + '}', 'g');
  return s.match(matcher).join(' ');
}

function invert(character) {
  /* jshint validthis: true */
  if (character.match(/\d/)) {
    this.push(character);
  } else {
    this.push(LETTERS[REVERSED_LETTERS.indexOf(character)]);
  }
}

module.exports = {
  encode: function (s) {
    var encoded = '';
    var characters = [];
    s.toLowerCase().split('').forEach( invert, characters );
    encoded = insertSpacing(characters.join(''), 5);
    return encoded;
  }
};

Version data entries

141 entries across 141 versions & 1 rubygems

Version	Path
trackler-2.2.1.139	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.138	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.137	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.136	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.135	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.134	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.133	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.132	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.131	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.130	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.129	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.128	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.127	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.126	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.125	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.124	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.123	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.122	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.121	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.120	tracks/javascript/exercises/atbash-cipher/example.js