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Answers and rating deltas for
In what condition we should use `[ ] a` in a type declaration?
| Author | Votes | Δ |
|---|---|---|
| Jon Purdy | 12 | +2.04 |
| Li-yao Xia | 4 | +0.20 |
| chi | 2 | -2.25 |
Last visited: Oct 8, 2018, 1:33:02 AM