Javacript Bootstrap Pagination

pagination.js

function GeneratePagination(total, perPage, current, visible, prefix) {
    var r = "";

    total = parseInt(total || 0);
    perPage = parseInt(perPage || 0);
    current = parseInt(current || 1);
    visible = parseInt(visible || 0);
    prefix = prefix || '';

    if (total <= 0) {
        return r;
    } else {

        var pCount = 1;
        if (perPage > 0) pCount = Math.ceil(total / perPage);

        if (pCount > 1) {
            var start = 1;
            var end = pCount;
            if (visible > 0 && pCount > visible) {
                start = Math.max(1, current - Math.round(visible / 2));
                end = Math.min(pCount, start + visible - 1);
            }
            r = '<nav><ul class="pagination">';
            if (current > 1) {
                var hhh = (prefix + (current - 1));
                debugger;

                r +=
                    '<li class="page-item">' +
                    '  <a class="page-link" href="' + hhh + '" aria-label="Önceki">' +
                    '    <span aria-hidden="true">&laquo;</span>' +
                    '    <span class="sr-only">Önceki</span>' +
                    '  </a>' +
                    '</li>';

            }
            for (var i = start; i <= end; i++) {
                var link = prefix + i;

                r +=
                    '<li class="page-item ' + (i == current ? 'active' : '') + '"><a class="page-link" href="' + link + '">' + i + '</a></li>';
            }
            if (current < pCount) {
                var hhh = (prefix + (current + 1));
                debugger;
                r +=
                    '<li class="page-item">' +
                    '  <a class="page-link" href="' + hhh + '" aria-label="Sonraki">' +
                    '    <span aria-hidden="true">&raquo;</span>' +
                    '    <span class="sr-only">Sonraki</span>' +
                    '  </a>' +
                    '</li>';

            }
            r += '</ul></nav>';
        }
        return r;
        /*
        <nav aria-label="Page navigation example">
          <ul class="pagination">
            <li class="page-item"><a class="page-link" href="#">Previous</a></li>
            <li class="page-item"><a class="page-link" href="#">1</a></li>
            <li class="page-item"><a class="page-link" href="#">2</a></li>
            <li class="page-item"><a class="page-link" href="#">3</a></li>
            <li class="page-item"><a class="page-link" href="#">Next</a></li>
          </ul>
        </nav>
        */



    }
}