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-2.2.1.180	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.179	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.178	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.177	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.176	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.175	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.174	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.173	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.172	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.171	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.170	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.169	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.167	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.166	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.165	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.164	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.163	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.162	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.161	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.160	tracks/javascript/exercises/atbash-cipher/example.js