Summary

An array stores a fixed sized collection of values on the stack

You can use index syntax to access and mutate values in an array

A slice is a non-fixed sized collection of values, which may live anywhere in memory

You can borrow a slice from an array

A string slice is a thin wrapper around a byte slice which guarantees valid UTF-8 data

A Vec is a heap-allocated collection of values that can have dynamic size

Vecs take a type parameter to indicate which type they contain

A String is a thin wrapper around a Vec<u8>

You can slice up a slice using slice syntax