[ 일일코딩 ] 삼행시 짓기 (Javascript)

원본

http://www.codewars.com/kata/54530f75699b53e558002076/train/javascript

Question

In this kata, we’re going to create the function nato that takes a word and returns a string spells the word using the NATO phonetic alphabet.

There should be a space between each word in the returned string, and the first letter of each word should be capitalized.

For those of you that don’t want your fingers to bleed, this kata already has a dictionary typed out for you.

nato('hi') // --> 'Hotel India'
nato('abc') // --> 'Alpha Bravo Charlie'

My Answer

var nato = (function() {
  var letters =  {
    "A": "Alpha",  "B": "Bravo",   "C": "Charlie",
    "D": "Delta",  "E": "Echo",    "F": "Foxtrot",
    "G": "Golf",   "H": "Hotel",   "I": "India",
    "J": "Juliett","K": "Kilo",    "L": "Lima",
    "M": "Mike",   "N": "November","O": "Oscar",
    "P": "Papa",   "Q": "Quebec",  "R": "Romeo",
    "S": "Sierra", "T": "Tango",   "U": "Uniform",
    "V": "Victor", "W": "Whiskey", "X": "X-ray",
    "Y": "Yankee", "Z": "Zulu"
  }

  return function(word) {
    var natoed = [];
    for(var i=0; i<word.length; i++){
      var letter = word.toUpperCase()[i];
      natoed.push(letters[letter]);
    }
    return natoed.join(" ");
  }
})()

Clever Answer by @ColbyDauph

var nato = (function() {
  var letters =  {
    "A": "Alpha",  "B": "Bravo",   "C": "Charlie",
    "D": "Delta",  "E": "Echo",    "F": "Foxtrot",
    "G": "Golf",   "H": "Hotel",   "I": "India",
    "J": "Juliett","K": "Kilo",    "L": "Lima",
    "M": "Mike",   "N": "November","O": "Oscar",
    "P": "Papa",   "Q": "Quebec",  "R": "Romeo",
    "S": "Sierra", "T": "Tango",   "U": "Uniform",
    "V": "Victor", "W": "Whiskey", "X": "X-ray",
    "Y": "Yankee", "Z": "Zulu"
  }

  return function(word) {
    return word.split('').map(function(v) {
      return letters[v.toUpperCase()]
    }).join(' ');
  }
})()