Leetcode剑指offer16不含有重复字符的最长子字符串

/**
 \* @param {string} s
 \* @return {number}
 */
var lengthOfLongestSubstring = function(s) {
  let queue = []
  let maxLen = 0 
  for(let i=0;i<s.length;i++){
•    if(queue.includes(s[i])){
•      queue.splice(0,1+queue.indexOf(s[i]))
•      queue.push(s[i])
•    }else{
•      queue.push(s[i])
•      maxLen = Math.max(maxLen,queue.length)
•    }
  }
  return maxLen
};