Examples
Lazy loading
Jspreadsheet Pro implements a smart virtual DOM management that brings a greater performance. In the example below, the spreadsheet handles 2 million cells (200K x 10 columns).
Source code
<html> <script src="https://jspreadsheet.com/v7/jspreadsheet.js"></script> <link rel="stylesheet" href="https://jspreadsheet.com/v7/jspreadsheet.css" type="text/css" /> <script src="https://jsuites.net/v4/jsuites.js"></script> <link rel="stylesheet" href="https://jsuites.net/v4/jsuites.css" type="text/css" /> <div id="spreadsheet"></div> <script> var data = []; document.addEventListener('DOMContentLoaded', function() { for (var j = 0; j < 500000; j++) { data[j] = []; for (var i = 0; i < 10; i++) { data[j][i] = jspreadsheet.helpers.getColumnNameFromCoords(i, j); } } var spreadsheet = jspreadsheet(document.getElementById('spreadsheet'), { data: data, tableOverflow: true, lazyLoading: true, lazyColumns: true, onlazyloading: function(el, addedRows, removedRows) { // Related events }, license: 'M2RiZjdmY2MyMmIzM2JlMGQxZjZkODg5YzcxNjIxN2IxZWUzZjI3MDJlNTAyNDhkZTk1YzM1NTRiN2NkN2UyOTA5NzRmOWVkOWNlYmJkMmVkMjI4MzE0MzU1YTViZWQ2OGMwNDlkYmRkOTc5ZGYzOGExN2YwZGI2ZDYyMTU5YmYsZXlKdVlXMWxJam9pY0dGMWJDNW9iMlJsYkNJc0ltUmhkR1VpT2pFMk5EWXdPVEk0TURBc0ltUnZiV0ZwYmlJNld5SmpjMkl1WVhCd0lpd2lhbk5tYVdSa2JHVXVibVYwSWl3aWQyVmlMbUZ3Y0NJc0ltcHpjSEpsWVdSemFHVmxkQzVqYjIwaUxDSnFaWGhqWld3dWJtVjBJaXdpYkc5allXeG9iM04wSWwwc0luQnNZVzRpT2lJekluMD0=' }); }); <script> </script> </html>
How the jspreadsheet lazy loading works
A brief visualization on how the lazy loading works on a jspreadsheet table.