| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../resources/runner.js"></script> |
| <script> |
| var div = document.createElement("div"); |
| for (var i = 0; i < 1000; i++) { |
| var key = "key_" + i; |
| var value = "value_" + i; |
| div.dataset[key] = value; |
| } |
| function assertEquals(a, b) { |
| if (a !== b) console.log("assertion failed: not equal", a, b); |
| } |
| var i = 0; |
| for (var key in div.dataset) { |
| var ref_key = "key_" + i; |
| var ref_value = "value_" + i; |
| assertEquals(key, ref_key); |
| assertEquals(div.dataset[key], ref_value); |
| i++; |
| } |
| |
| PerfTestRunner.measureRunsPerSecond({ |
| description: "This benchmark covers enumerator of named properties", |
| run: function() { |
| for (var key in div.dataset); |
| }}); |
| </script> |
| </body> |
| </html> |
