Merge Multiple Array In Rust

Combining arrays can be a common requirement in any programming language and Rust is no exception. In Rust, we can merge multiple arrays to simplify the process of manipulating data, reduce duplication and improve overall code efficiency.

Code snippet to merge multiple arrays in Rust

Here’s a simple example of merging multiple arrays:

fn main() {
    let arr1 = [1, 2, 3, 4, 5];
    let arr2 = [6, 7, 8, 9, 10];
    let arr3 = [11, 12, 13, 14, 15];

    let merged: Vec<_> = [arr1, arr2, arr3].concat();

    println!("{:?}", merged);
}

After running this script, we will see the output as:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]

This implies that the arrays arr1, arr2 and arr3 have been merged into a single array merged.

Code Explanation for Merging Arrays in Rust

Firstly, three arrays arr1, arr2 and arr3 are declared with integer elements in the main function. These are the arrays that we want to merge.

In the next line, we create a new array merged using the concat function. The concat function is a method available for an array in Rust which is used to concatenate or join two or more arrays and form a new array. In our case, it is used to merge arr1, arr2 and arr3.

let merged: Vec<_> = [arr1, arr2, arr3].concat();

Then release the merged array is with the println! macro. The macro println! prints to the standard output, with a newline. If you run this program, you will see the merged array printed in your terminal.

That’s how you can merge multiple arrays in Rust. The concat function helps us ease the process of merging, making our code cleaner and more efficient.