refactor: modernize array and string last element access using .at(-1)
#10153
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.at(-1)
#10153
| Job | Run time |
|---|---|
| 7s | |
| 2m 7s | |
| 1m 52s | |
| 1m 50s | |
| 0s | |
| 0s | |
| 0s | |
| 0s | |
| 0s | |
| 5m 56s |