| OLD | NEW |
|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <!-- Identical to "append-child.html" but having 100 active ranges --> | 2 <!-- Identical to "remove-child.html" but having 100 active ranges --> |
| 3 <body> | 3 <body> |
| 4 <pre id="log"></pre> | 4 <pre id="log"></pre> |
| 5 <script src="../resources/runner.js"></script> | 5 <script src="../resources/runner.js"></script> |
| 6 <div id="sandbox" style="display:none"></div> | 6 <div id="sandbox" style="display:none"></div> |
| 7 <script> | 7 <script> |
| 8 var elems = []; | 8 var elems = []; |
| 9 for (var i = 0; i < 50000; ++i) | 9 for (var i = 0; i < 50000; ++i) |
| 10 elems[i] = document.createElement('div'); | 10 elems[i] = document.createElement('div'); |
| 11 | 11 |
| 12 var ranges = []; | 12 var ranges = []; |
| 13 for (var i = 0; i < 100; ++i) { | 13 for (var i = 0; i < 1000; ++i) { |
| 14 var range = new Range(); | 14 var range = new Range(); |
| 15 ranges[i] = range; | 15 ranges[i] = range; |
| 16 range.selectNodeContents(document.body); | 16 range.selectNodeContents(document.body); |
| 17 } | 17 } |
| 18 | 18 |
| 19 var sandbox = document.getElementById('sandbox'); | 19 var sandbox = document.getElementById('sandbox'); |
| 20 | 20 |
| 21 PerfTestRunner.measureRunsPerSecond({ | 21 PerfTestRunner.measureRunsPerSecond({ |
| 22 description: 'Measures performance of appendChild with active Range objects'
, | 22 description: 'Measures performance of removeChild with active Range objects'
, |
| 23 run: function() { | 23 run: function() { |
| 24 for (var elem of elems) | 24 for (var elem of elems) |
| 25 sandbox.appendChild(elem); | 25 sandbox.appendChild(elem); |
| 26 while (sandbox.firstChild) |
| 27 sandbox.firstChild.remove(); |
| 26 } | 28 } |
| 27 }); | 29 }); |
| 28 </script> | 30 </script> |
| 29 </body> | 31 </body> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2039113003:
Make removeChild faster with active ranges (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master