2022-07-12 08:16:25 -05:00
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# Vectors
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Vectors are one of the most-used Rust data structures. In other programming
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languages, they'd simply be called Arrays, but since Rust operates on a
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bit of a lower level, an array in Rust is stored on the stack (meaning it
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can't grow or shrink, and the size needs to be known at compile time),
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and a Vector is stored in the heap (where these restrictions do not apply).
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Vectors are a bit of a later chapter in the book, but we think that they're
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useful enough to talk about them a bit earlier. We shall be talking about
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the other useful data structure, hash maps, later.
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## Further information
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- [Storing Lists of Values with Vectors](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)
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2023-02-12 11:26:13 -06:00
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- [`iter_mut`](https://doc.rust-lang.org/std/primitive.slice.html#method.iter_mut)
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- [`map`](https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.map)
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