Function remove

strings/one-edit.js:67–103

(string1, string2)

}

function remove(string1, string2) {
  let largestString = string1.length > string2.length ? string1 : string2;
  let smallestString = string1.length > string2.length ? string2 : string1;
  let stringAfterRemoving = "";

  const freq = {};
  let letterToRemove = null;

  for (const char of largestString) {
    if (!freq.hasOwnProperty(char)) {
      freq[char] = 1;
    } else {
      freq[char]++;
    }
  }

  for (const char of smallestString) {
    if (freq.hasOwnProperty(char)) {
      freq[char]--;
      if (freq[char] === 0) {
        delete freq[char];
      }
    }
  }

  Object.keys(freq).forEach((key) => (letterToRemove = key));

  let removeOne = 1;
  for (let i = 0; i < largestString.length; i++) {
    if (largestString[i] === letterToRemove && removeOne > 0) {
      removeOne--;
      continue;
    }
    stringAfterRemoving += largestString[i];
  }
  return [smallestString, stringAfterRemoving];
}