Morse code dichotomic search.

morse-code-dichotomic-search.js

// Determine the possible characters that could result from a certain morse code word with some potentially unknown signals (?).
// ? is either dit (.) or dah (-)
// This is incomplete, sorry.

const possibilities = signal => {
  const signals = signal.split('');
  console.log(`🚀`, signals);
  
  const hasUnknownSignal = signals.includes('?');
  
  if(!hasUnknownSignal) return [MORSE_CODE[signal]];

  if (signals.length == 1) return [MORSE_CODE['.'], MORSE_CODE['-']];
  
  const result = signals.map((item, index, arr) => {
    if(item == '?') return '.,-';
  })
  
  console.log('🎉', result);
  
  return result;
};


var MORSE_CODE = {
   ".-": "A",
    "-...": "B",
    "-.-.": "C",
    "-..": "D",
    ".": "E",
    "..-.": "F",
    "--.": "G",
    "....": "H",
    "..": "I",
    ".---": "J",
    "-.-": "K",
    ".-..": "L",
    "--": "M",
    "-.": "N",
    "---": "O",
    ".--.": "P",
    "--.-": "Q",
    ".-.": "R",
    "...": "S",
    "-": "T",
    "..-": "U",
    "...-": "V",
    ".--": "W",
    "-..-": "X",
    "-.--": "Y",
    "--..": "Z"
}

possibilities('-?'); // []
// ..-, -.-