Merge Two Arrays Together In Rust

Dealing with data structures is a vital part of most programming tasks. In the Rust programming language, one common task is merging two arrays together. Let’s see how it can be done!

Code snippet for Merge Two Arrays Together In Rust

Here’s a simple code snippet that demonstrates merging two arrays together in Rust.

fn main() {
    let array1 = [1, 2, 3, 4, 5];
    let array2 = [6, 7, 8, 9, 10];

    let result: Vec<_> = array1.iter().chain(array2.iter()).collect();

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

This code will print [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] as a result, which is the merge of array1 and array2.

Code Explanation for Merge Two Arrays Together In Rust

Let’s break down the steps of the code:

1. let array1 = [1, 2, 3, 4, 5]; and let array2 = [6, 7, 8, 9, 10]; These lines initialize two arrays. array1 consists of integers from 1 to 5, and array2 contains numbers from 6 to 10.

2. let result: Vec<_> = array1.iter().chain(array2.iter()).collect(); This line of code does the actual merging process.

   • array1.iter() and array2.iter(): These parts create an iterator over the elements in array1 and array2, respectively.
   • .chain(array2.iter()): The chain method connects the array1 and array2 iterators into a single iterator. So it ends up iterating over array1 first and then continues with array2.
   • .collect() : This simply transforms the iterator back into a collection (a Vec in this case), with all the elements together in sequential order (as they appeared in the original iterators).

3. println!("{:?}", result); By using the println! macro with the {:?} placeholder, the program outputs the entire result vector to the console. The {:?} is a placeholder that allows debugging information to be printed for the argument in the placeholder position. In this case, it will print out the result vector.

In conclusion, this brief tutorial provided a detailed step-by-step explanation of merging two arrays together in Rust. By using the iter(), chain(), and collect() methods, anyone learning Rust can easily merge multiple arrays together in their programs.