var lengthOfLongestSubstring = function(s) {
let slow = 0,
fast = 0,
max = 0,
set = new Set();
while (fast < s.length) {
if (!set.has(s[fast])) {
set.add(s[fast]);
fast++;
} else {
set.delete(s[slow]);
slow++;
}
max = set.size > max ? set.size : max;
}
return max;
};
console.log(lengthOfLongestSubstring("abcabcbb")); // 3
console.log(lengthOfLongestSubstring("abcabcdbb")); // 4
Length of Longest Substring - Without Char Repeat
ZeeshanAli-0704 - Aug 15 '22 - 
