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| -rw-r--r-- | src/doc/trpl/arrays-vectors-and-slices.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/doc/trpl/arrays-vectors-and-slices.md b/src/doc/trpl/arrays-vectors-and-slices.md index d4e2ad5cd5f..f1b5ecf4ff0 100644 --- a/src/doc/trpl/arrays-vectors-and-slices.md +++ b/src/doc/trpl/arrays-vectors-and-slices.md @@ -60,6 +60,12 @@ let v = vec![1, 2, 3]; // v: Vec<i32> brackets `[]` with `vec!`. Rust allows you to use either in either situation, this is just convention.) +There's an alternate form of `vec!` for repeating an initial value: + +``` +let v = vec![0; 10]; // ten zeroes +``` + You can get the length of, iterate over, and subscript vectors just like arrays. In addition, (mutable) vectors can grow automatically: |