A string s can be partitioned into groups of size k using the following procedure: The first group consists of the first k characters of the string, the second group consists of the next k characters of the string, and so on. Each element can be a p

divideString.js

/**
 * @param {string} s
 * @param {number} k
 * @param {character} fill
 * @return {string[]}
 */
var divideString = function(s, k, fill) {
    const result = [];

    // Loop through the string in increments of k
    for (let i = 0; i < s.length; i += k) {
        // Get a substring of length k starting from index i
        let group = s.slice(i, i + k);

        // If the group is shorter than k, pad it with the fill character
        if (group.length < k) {
            group = group.padEnd(k, fill);
        }

        // Add the group to the result array
        result.push(group);
    }

    return result;
};