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58 lines
1.8 KiB
JavaScript
58 lines
1.8 KiB
JavaScript
const tableData = document.getElementById('tableData');
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const thead = tableData.previousElementSibling;
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const rows = [...tableData.rows];
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const orders = [1, 1, 1, 1, 1, 1, 1, 1];
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const sort = (header, col, type) => {
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let rowCount = rows.length;
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rows.sort((a, b) => {
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if (type === 'text') {
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let i = a.children[col].firstChild.nodeValue,
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j = b.children[col].firstChild.nodeValue;
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return i === j ? 0 : i > j ? orders[col] : -orders[col];
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} else if (type === 'number') {
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let i = parseInt(a.children[col].firstChild.nodeValue),
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j = parseInt(b.children[col].firstChild.nodeValue);
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return i === j ? 0 : i > j ? orders[col] : -orders[col];
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}
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});
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orders[col] *= -1;
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activeHeader(header);
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sortIndicator(header, orders[col]);
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while (tableData.lastChild) tableData.lastChild.remove();
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while (rowCount--) tableData.prepend(rows[rowCount]);
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};
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const activeHeader = header => {
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const thArray = Array.prototype.slice.call(thead.querySelectorAll('th'));
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thArray.forEach(th => {
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th.className = '';
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th.removeAttribute('aria-label');
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if (th === header) {
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th.classList.add('active');
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}
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});
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};
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const sortIndicator = (header, ordering) => {
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if (ordering === 1) {
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header.classList.remove('asc');
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header.classList.add('desc');
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header.setAttribute('aria-label', 'sort by ' + header.innerHTML + ' in descending order');
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} else if (ordering === -1) {
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header.classList.remove('desc');
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header.classList.add('asc');
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header.setAttribute('aria-label', 'sort by ' + header.innerHTML + ' in ascending order');
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}
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};
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thead.addEventListener(
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'click',
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event => {
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let target = event.target;
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let type = target.dataset.type;
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if (target.nodeName.toLowerCase() === 'th') {
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sort(target, target.cellIndex, type);
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}
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},
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0); |