| <!DOCTYPE html> |
| <body> |
| <style> |
| textarea:valid { |
| background-color: lime; |
| } |
| textarea:invalid { |
| background-color: red; |
| } |
| </style> |
| <script src="../resources/runner.js"></script> |
| <textarea maxlength=2147483647 id="container"></textarea> |
| <script> |
| var container = document.getElementById('container'); |
| container.focus(); |
| PerfTestRunner.measureRunsPerSecond({ |
| description: "Measures performance of adding text to a textarea using document.execCommand, then clearing it.", |
| run: function() { |
| for (var i = 0; i < 500; ++i) |
| document.execCommand('insertText', false, 'A quick brown fox jumps over the lazy dog.\n'); |
| container.value = ''; |
| } |
| }); |
| </script> |
| </body> |
