| <!DOCTYPE html> |
| <script> |
| var start; |
| var dom; |
| |
| function run() { |
| if (dom) { |
| dom.parentNode.removeChild(dom); |
| } |
| |
| dom = document.createElement('div'); |
| var result = document.createElement('div'); |
| dom.appendChild(result); |
| document.body.appendChild(dom); |
| |
| start = Date.now(); |
| |
| for (var i = 0; i < 100; i++) { |
| var iframe = document.createElement('iframe'); |
| iframe.style.width = '200px'; |
| iframe.style.height = '30px'; |
| dom.appendChild(iframe); |
| var content = iframe.contentWindow.document.createTextNode('hello, world'); |
| iframe.contentWindow.document.body.appendChild(content); |
| iframe.contentWindow.document.body.style.overflow = 'hidden'; |
| } |
| |
| result.innerHTML = 'Done! ' + (Date.now() - start) + ' ms'; |
| } |
| </script> |
| <input type="button" value="Go!" onclick="run()"> |
