Name	Surname	Age
John	Smith	62
Dylan	Jones	37
Alan	Shearer	55
Ringo	Starr	52

const tableData = table2data(tableBody); // sort the extracted data tableData.reverse((a, b) => { if (a[sortColumn] > b[sortColumn]) { return -1; } return 1; }) // put the sorted data back into the table data2table(tableBody, tableData); } // this function gets data from the rows and cells // within an html tbody element function table2data(tableBody) { const tableData = []; // create the array that'll hold the data rows tableBody.querySelectorAll('tr') .forEach(row => { // for each table row... const rowData = []; // make an array for that row row.querySelectorAll('td') // for each cell in that row .forEach(cell => { rowData.push(cell.innerText); // add it to the row data }) tableData.push(rowData); // add the full row to the table data }); return tableData; } // this function puts data into an html tbody element function data2table(tableBody, tableData) { tableBody.querySelectorAll('tr') // for each table row... .forEach((row, i) => { const rowData = tableData[i]; // get the array for the row data row.querySelectorAll('td') // for each table cell ... .forEach((cell, j) => { cell.innerText = rowData[j]; // put the appropriate array element into the cell }) tableData.push(rowData); }); }