mutation.js

// Return true if the string in the first element of the array contains all of the letters of the string in the second element of the array.

// For example, ["hello", "Hello"], should return true because all of the letters in the second string are present in the first, ignoring case.

// The arguments ["hello", "hey"] should return false because the string hello does not contain a y.

// Lastly, ["Alien", "line"], should return true because all of the letters in line are present in Alien.

function mutation(arr) {
  for (let i = 0; i < arr[1].length; i++) {
    for (let j = 0; j < arr[0].length; j++) {
      if (arr[1][i].toLowerCase() == arr[0][j].toLowerCase()) {
        break;
      }
      if (j == arr[0].length - 1) {
        return false;
      }
    }
  }
  return true;
}

mutation(["hello", "herllo"]);