challenges-51.js

// #Question

// You're given strings jewels representing the types of stones that are jewels, and stones representing the stones you have. Each character in stones is a type of stone you have. You want to know how many of the stones you have are also jewels.

// Letters are case sensitive, so "a" is considered a different type of stone from "A".

// Example 1:

// Input: jewels = "aA", stones = "aAAbbbb"
// Output: 3
// Example 2:

// Input: jewels = "z", stones = "ZZ"
// Output: 0

// Constraints:

// 1 <= jewels.length, stones.length <= 50
// jewels and stones consist of only English letters.
// All the characters of jewels are unique.

// #Solution

var numJewelsInStones = function (jewels, stones) {
  let count = 0;
  for (let i = 0; i < stones.length; i++) {
    for (let a = 0; a < jewels.length; a++) {
      if (jewels[a] === stones[i]) {
        count++;
      }
    }
  }
  return count;
};

numJewelsInStones("aA", "aAABBBBbbbb");