Rust: What is the difference between slice and as_slice?

slice — borrow as slice. as_slice — convert to slice.

slice:

• Borrow from Vec.
• Returns &[T].
• For ranges.

as_slice:

• Convert to slice.
• Returns &[T].n- For Deref.

1let v = vec![1, 2, 3, 4, 5];
2
3// slice: [2, 3, 4]
4let sub = &v[1..4];
5
6// as_slice: [1, 2, 3, 4, 5]
7let full = v.as_slice();

Key: slice for ranges, as_slice for full view.