Contents

function toRoman(number) {
  let result = '';
  const mappings = [
    { arabic: 1000, roman:  'M' },
    { arabic:  900, roman: 'CM' },
    { arabic:  500, roman:  'D' },
    { arabic:  400, roman: 'CD' },
    { arabic:  100, roman:  'C' },
    { arabic:   90, roman: 'XC' },
    { arabic:   50, roman:  'L' },
    { arabic:   40, roman: 'XL' },
    { arabic:   10, roman:  'X' },
    { arabic:    9, roman: 'IX' },
    { arabic:    5, roman:  'V' },
    { arabic:    4, roman: 'IV' },
    { arabic:    1, roman:  'I' }
  ];

  mappings.forEach(mapping => {
    while (number >= mapping.arabic) {
      result = result + mapping.roman;
      number = number - mapping.arabic;
    }
  });

  return result;
}

export default toRoman;

Version data entries

211 entries across 211 versions & 1 rubygems

Version	Path
trackler-2.2.0.0	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.55	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.54	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.53	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.52	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.51	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.50	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.49	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.48	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.47	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.46	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.45	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.44	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.43	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.42	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.41	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.40	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.39	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.38	tracks/ecmascript/exercises/roman-numerals/example.js
trackler-2.1.0.37	tracks/ecmascript/exercises/roman-numerals/example.js