| Browser | Sort is stable | Sort is unstable |
| Firefox 8 | all lengths | |
| Safari 5.1.1 | all lengths | |
| Opera 11.52 | all lengths | |
| Internet Explorer 6, 7, 8 | all lengths | |
| Internet Explorer 9 | all lengths | |
| Android 2.3 Browser | all lengths | |
| Chrome 15 .. 17.0.942.0 | length <= 10 | length > 10 |
This tests whether Array.prototype.sort does a stable sort on your browser for various lengths of arrays of Objects.