1493-longest-subarray-of-1s-after-deleting-one-element.js

/**
 * @param {number[]} nums
 * @return {number}
 */
var longestSubarray = function(nums) {
    let left = 0, count_zeros = 0, max_length = 0;
    for (let right = 0; right < nums.length; ++right) {
        if (nums[right] == 0) {
            ++count_zeros;
        }
        while (count_zeros > 1) {
            if (nums[left] == 0) {
                --count_zeros;
            }
            ++left;
        }
        max_length = Math.max(max_length, right - left);
    }
    return max_length;
};