refactor: modernize array and string last element access using .at(-1)
#2391
| Job | Run time |
|---|---|
| 1m 55s | |
| 29s | |
| 28s | |
| -1s | |
| -1s | |
| -1s | |
| 0s | |
| 0s | |
| 0s | |
| 0s | |
| 2m 49s |
.at(-1)
#2391
| Job | Run time |
|---|---|
| 1m 55s | |
| 29s | |
| 28s | |
| -1s | |
| -1s | |
| -1s | |
| 0s | |
| 0s | |
| 0s | |
| 0s | |
| 2m 49s |