text: const { NotImplementedError } = require('../extensions/index.js');
  
  /**
   * 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 count = 0;
    for(let letter in s1){
      if(s2.indexOf(s1[letter])!==-1){
        count++;
        s2=s2.replace(s1[letter],"")
      }
    }
    console.log(count)
    return count;
  
    // remove line with error and write your code here
  }
  
  module.exports = {
    getCommonCharacterCount
  };
  