DEV Community

Discussion on: Daily Challenge #208 - Delete Occurrences of an Element

View post
Collapse
 
aminnairi profile image
Amin • • Edited

JavaScript

function deleteNth([item, ...items], maximum, occurrences = {}) {
    if (item === undefined) {
        return [];
    }

    if (!occurrences[item]) {
        occurrences[item] = 1;
    } else {
        occurrences[item]++;
    }

    if (occurrences[item] > maximum) {
        return deleteNth(items, maximum, occurrences);
    }

    return [item, ...deleteNth(items, maximum, occurrences)];
}