Kata 13 - Case Maker II

kata13CaseMakerII.js

const makeCase = function (input, scheme) {
  (typeof scheme !== 'object') && (scheme = [scheme]);
  let arrStr = [input];
  for (let sch of scheme){
    let i = 0; 
    let cap = false;
    for (let c of arrStr.join('')) {
      if (sch === 'camel') {
        c === ' ' ? cap = true : cap === true ? (arrStr[i] = c.toUpperCase()) && (cap = false) : arrStr[i] = c;
        i++;
      } else if (sch === 'pascal') {
        i === 0 ? arrStr[i] = c.toUpperCase() : c === ' ' ? capitalize = true : capitalize === true ? (arrStr[i] = c.toUpperCase()) && (capitalize = false) : arrStr[i] = c;
        i++;
      } else if (sch === 'snake') {
        c === ' ' ? arrStr[i] = '_' : arrStr[i] = c;
        i++;
      } else if (sch === 'kebab') {
        c === ' ' ? arrStr[i] =  '-' : arrStr[i] =  c;
        i++;
      } else if (sch === 'title') {
        cap === true ? ((arrStr[i] =  c.toUpperCase()), (cap = false)) : c === ' ' ? ((cap = true) && (arrStr[i] =  c)) : i === 0 ? (arrStr[i] =  c.toUpperCase()) && (i++) : arrStr[i] =  c; 
        i++;
      } else if (sch === 'vowel') {
        ['a', 'e', 'i', 'o', 'u'].includes(c) ? arrStr[i] =  c.toUpperCase() : arrStr[i] =  c;
        i++;
      } else if (sch === 'consonant') {
        !['a', 'e', 'i', 'o', 'u'].includes(c) ? arrStr[i] =  c.toUpperCase() : arrStr[i] =  c;
        i++;
      } else if (sch === 'upper') {
        arrStr = arrStr.map(c => c.toUpperCase())
      } else {
        arrStr = arrStr.map(c => c.toLowerCase())
      }
    }
  }
  return arrStr.join('');
};

console.log(makeCase("this is a string", "camel"));             // thisIsAString
console.log(makeCase("this is a string", "pascal"));            // ThisIsAString
console.log(makeCase("this is a string", "snake"));             // this_is_a_string
console.log(makeCase("this is a string", "kebab"));             // this-is-a-string
console.log(makeCase("this is a string", "title"));             // This Is A String
console.log(makeCase("this is a string", "vowel"));             // thIs Is A strIng
console.log(makeCase("this is a string", "consonant"));         // THiS iS a STRiNG
console.log(makeCase("this is a string", "upper"));             // THIS IS A STRING
console.log(makeCase("this is a string", "lower"));             // this is a string
console.log(makeCase("this is a string", ["lower", "snake", "vowel"]));  // thIs_Is_A_strIng