搜索旋转排序数组

search(nums, target){
      let left = 0;
      let right = nums.length - 1;
      while(left < right){
        let mid = Math.floor((left + right) / 2);
        if((nums[0] > target) ^ (nums[0] > nums[mid]) ^ (target > nums[mid]))
          left = mid + 1;
        else
          right = mid;
      }
      return left === right && nums[left] === target ? left : -1;
    },