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How to Concatenate Two Vectors in Rust - Step by Step Examples

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How to Concatenate Two Vectors in Rust ?

Answer

To concatenate two vectors in Rust, you can use the `extend` method or the `append` method.

✐ Examples

1 Concatenate Numeric Vectors using extend() method

In this example,

We create two vectors named vector1 and vector2.
We call the extend method on vector1 with vector2 as an argument.
The extend method appends all elements from vector2 to vector1.
Finally, we print vector1 to standard output.

Rust Program

let mut vector1 = vec![1, 2, 3];
let vector2 = vec![4, 5, 6];
vector1.extend(vector2);
println!("{:?}", vector1);

Output

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

2 Concatenate Character Vectors using append() method

In this example,

We create two vectors named vector1 and vector2.
We call the append method on vector1 with vector2 as an argument.
The append method appends all elements from vector2 to vector1.
Finally, we print vector1 to standard output.

Rust Program

let mut vector1 = vec!['a', 'b', 'c'];
let vector2 = vec!['d', 'e', 'f'];
vector1.append(&mut vector2);
println!("{:?}", vector1);

Output

["a", "b", "c", "d", "e", "f"]

Summary

In this tutorial, we learned How to Concatenate Two Vectors in Rust language with well detailed examples.

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