refactor: modernize array and string last element access using .at(-1)
#10154
| Job | Run time |
|---|---|
| 1m 52s | |
| 1m 56s | |
| 2m 20s | |
| 7s | |
| 0s | |
| -1s | |
| -1s | |
| -1s | |
| -1s | |
| 6m 11s |
.at(-1)
#10154
| Job | Run time |
|---|---|
| 1m 52s | |
| 1m 56s | |
| 2m 20s | |
| 7s | |
| 0s | |
| -1s | |
| -1s | |
| -1s | |
| -1s | |
| 6m 11s |