MediaWiki:RowToggle.js

mw.hook('wikipage.content').add(function () {
    var pageTitle = mw.config.get('wgPageName');

    document.querySelectorAll('.toggle-rows').forEach(function (table, tableIndex) {
        table.querySelectorAll('tbody tr').forEach(function (row, rowIndex) {
            row.style.cursor = 'pointer';
            var rowId = pageTitle + '-t' + tableIndex + '-r' + rowIndex;
            if (localStorage.getItem('toggle-row-' + rowId) === '1') {
                row.classList.add('toggle-row-complete');
            }

            row.addEventListener('click', function () {
                row.classList.toggle('toggle-row-complete');
                var isComplete = row.classList.contains('toggle-row-complete');
                localStorage.setItem('toggle-row-' + rowId, isComplete ? '1' : '0');
            });
        });
    });
});