80-Remove-Duplicates-from-Sorted-Array-II.js

/**
 * @param {number[]} nums
 * @return {number}
 */
const removeDuplicates = (nums) => {
    for (let i = 2; i < nums.length; i++) {
        if (nums[i] === nums[i - 1] && nums[i - 1] === nums[i - 2]) {
            nums.splice(i, 1);
            i--;
        }
    }

    return nums.length;
};