Longest Substring Without Repeating Charactersmedium

/**
 * @param {string} s
 * @return {number}
 */
function lengthOfLongestSubstring(s) {
    // TODO: sliding window with a Map or Set
    return 0;
}

console.log(lengthOfLongestSubstring("abcabcbb")); // 3
console.log(lengthOfLongestSubstring("bbbbb"));    // 1
console.log(lengthOfLongestSubstring("pwwkew"));   // 3