Optimizing JavaScript Code With Sliding Window Technique
Optimize string length with `lengthOfLongestSubstring` function. Uses Set to track unique substrings and slide window approach for efficient solution.
Javascript Code
/**
* @param {string} s
* @return {number}
*/
var lengthOfLongestSubstring = function (s) {
const mySet = new Set();
let left = 0;
let maxLength = 0;
for (let right = 0; right < s.length; right++) {
while (mySet.has(s[right])) {
mySet.delete(s[left]);
left++;
}
mySet.add(s[right]);
maxLength = Math.max(maxLength, mySet.size);
}
return maxLength
};