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-2.2.1.58	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.57	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.56	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.55	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.54	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.53	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.52	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.51	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.50	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.49	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.48	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.47	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.46	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.45	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.44	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.43	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.42	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.41	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.40	tracks/javascript/exercises/atbash-cipher/example.js
trackler-2.2.1.39	tracks/javascript/exercises/atbash-cipher/example.js