Leetcode977有序数组的平方(双指针解法)

/**
 \* @param {number[]} nums
 \* @return {number[]}
 */
var sortedSquares = function(nums) {
  let left = 0
  let right = nums.length -1
  let res = []
  while(left <= right){
•    if(nums[left]*nums[left] >= nums[right]*nums[right]){
•      res.push(nums[left]*nums[left])
•      left++
•    }else{
•      res.push(nums[right]*nums[right])
•      right--
•    }
  }
  return res.reverse()
};