How to Get Array Length in Rust - Step by Step Examples

How to Get Array Length in Rust ?

To get the length of an array in Rust, you can use the len method.

In this example,

We create an integer array named numbers with some values.
We use the len method to get the length of the array and store the returned value in length variable.
Finally, we shall print the value in length to standard output.

fn main() {
    let numbers = [1, 2, 3, 4, 5];
    let length = numbers.len();
    println!("Length of array is: {}", length);
}

Length of array is: 5

In this example,

We create a string array named names with some strings.
We use the len method to get the length of the array and store the returned value in length variable.
Finally, we shall print the value in length to standard output.

fn main() {
    let names = ["Alice", "Bob", "Charlie"];
    let length = names.len();
    println!("Length of array is: {}", length);
}

Length of array is: 3

In this tutorial, we learned How to Get Array Length in Rust language with well detailed examples.