Function getFrequencyMap

javascript/0621-task-scheduler.js:15–23

(tasks, frequencyMap = new Array(26).fill(0))

};

var getFrequencyMap = (tasks, frequencyMap = new Array(26).fill(0)) => {
    for (const task of tasks) {
        const index = task.charCodeAt(0) - 'A'.charCodeAt(0);

        frequencyMap[index]++;
    }

    return frequencyMap;
};

const getMaxHeap = (frequencyMap, maxHeap = new MaxPriorityQueue()) => {
    for (const frequency of frequencyMap) {