text: /**
   * Given two strings, find the number of common characters between them.
   *
   * @param {String} s1
   * @param {String} s2
   * @return {Number}
   *
   * @example
   * For s1 = "aabcc" and s2 = "adcaa", the output should be 3
   * Strings have 3 common characters - 2 "a"s and 1 "c".
   */
  function getCommonCharacterCount(s1, s2) {
    let res = 0;
    const arr = s2.split('');
    for (let i = 0; i < s1.length; i += 1) {
      if (arr.includes(s1[i])) {
        res += 1;
        arr.splice(arr.indexOf(s1[i]), 1);
      }
    }
    return res;
  }
  
  module.exports = getCommonCharacterCount;
  