rustHow to get an element from a slice in Rust?

To get an element from a slice in Rust, you can use the get method. This method takes an index as an argument and returns an Option<&T> where T is the type of the elements in the slice.

let v = [10, 40, 30];
let third: Option<&i32> = v.get(2);
println!("The third element is {:?}", third);

Output example

The third element is Some(30)

The code above does the following:

1. Declares a slice v with three elements of type i32.
2. Calls the get method on v with the index 2 as an argument.
3. Prints the result of the get method, which is an Option<&i32>.

Helpful links

• Slice documentation
• Option documentation

Edit this code on GitHub