| 'abc'.lastIndexOf('a', 4) = 0 | |
| 'abc'.lastIndexOf('b', Infinity) = 1 | |
| 'abc'.lastIndexOf('a', -1) = 0 | |
| 'abc'.lastIndexOf('a', -Infinity) = 0 | |
| 'oracle'.lastIndexOf('u') = -1 | |
| 'hello'.lastIndexOf('l') = 3 | |
| 'hello'.lastIndexOf('l', 2) = 2 | |
| 'hello'.lastIndexOf('l', 3) = 3 | |
| 'hello'.lastIndexOf('l', 1) = -1 |