rustHow to join two arrays in Rust

Joining two arrays in Rust can be done using the concat() method. This method takes two arrays as arguments and returns a new array containing all the elements of both the arrays.

Code example:

let array1 = [1, 2, 3];
let array2 = [4, 5, 6];
let array3 = array1.concat(array2);
println!("{:?}", array3);

Output [1, 2, 3, 4, 5, 6]

Explanation:

1. The let keyword is used to declare a variable. Here, two variables array1 and array2 are declared and assigned with two arrays containing elements 1, 2, 3 and 4, 5, 6 respectively.
2. The concat() method is used to join two arrays. It takes two arrays as arguments and returns a new array containing all the elements of both the arrays.
3. The println! macro is used to print the elements of the array array3 which contains the elements of both the arrays array1 and array2.
4. The {:?} is used to print the elements of the array in a debug format.

Helpful links:

1. https://doc.rust-lang.org/std/primitive.slice.html#method.concat
2. https://doc.rust-lang.org/std/macro.println.html

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