Divide Array Into Arrays With Max Difference

LeetCode題目: 2966. Divide Array Into Arrays With Max Difference

My solution:

/**
 * @param {number[]} nums
 * @param {number} k
 * @return {number[][]}
 */
const divideArray = (nums, k) => {
    const newArr = [];
    nums.sort((a, b) => a - b);
    for(let i=0; i<nums.length-2; i+=3) {
        if(nums[i+2] - nums[i] > k) return [];
        newArr.push([nums[i], nums[i+1], nums[i+2]]);
    }
    return newArr
};