you-cant-spell-without.ts

interface Without {
  without(withoutWord: string): boolean;
}

// 1. Easiest / the way I'd do it
function youCantSpell(word: string): Without {
  return {
    without(withoutWord: string) {
      return word.includes(withoutWord);
    }
  }
}

// 2. Using bind
function youCantSpell(word: string): Without {
  return {
    without: String.prototype.includes.bind(word)
  }
}

// 3. Hot Shot Arrow function
const youCantSpell = (word: string): Without => ({ without: (withoutWord: string) => word.includes(withoutWord) });



console.log(youCantSpell('awesome').without('wes')); // true
console.log(youCantSpell('functions').without('fun')); // true
console.log(youCantSpell('families').without('lies')); // true
console.log(youCantSpell('pneumonoultramicroscopicsilicovolcanoconiosis').without('volcano')); // true
console.log(youCantSpell('hottie').without('scottie')); // false