Static Arrays in Rust

When we're dealing with large amounts of data, we want to make sure we can organize and manage it properly.

In Rust, we use arrays to store several pieces of data in one place. The items in an array must be of the same data type.

A static array or fixed array is an array for which the size / length is determined when the array is created and/or allocated.

Creation:

We create a static array by writing the array's name followed by its type, [T; N], where T is the element type and N is the length, like this:

let array_of_strings: [&str; 5] = [""; 5];

This code creates an array named array_of_strings that consists of 5 &str items.

These 5 items are initialized with empty strings "" automatically.

Creation & Initialization:

There is a way to initialize an array at creation by using the = operator with an opening bracket, end it with a closing bracket, and put a comma between each entry, like this:

let array_of_strings = ["AlgoCademy", "coding", "static arrays"];

We created an array named array_of_strings which consists of 3 string items: "AlgoCademy", "coding" and "static arrays".

Assignment
Follow the Coding Tutorial and let's play with some arrays.

Hint
Look at the examples above if you get stuck.