How to Reverse a String in Rust - Step by Step Examples

How to Reverse a String in Rust ?

Answer

To reverse a string in Rust, you can use the chars() iterator to get individual characters, collect them into a vector, and then use into_iter().rev() to reverse the vector.

✐ Examples

1 Reversing "Hello World" String

In this example,

We create a string named str1 with a value of "Hello World".
We convert str1 into an iterator of characters using chars().
We collect the characters into a vector.
We reverse the vector using into_iter().rev().
Finally, we collect the characters back into a string and print the result.

Rust Program

fn main() {
    let str1 = String::from("Hello World");
    let reversed_str1: String = str1.chars().collect::<Vec<char>>().into_iter().rev().collect();
    println!("Reversed string is: {}", reversed_str1);
}

Output

Reversed string is: dlroW olleH

2 Reversing "apple" String

In this example,

We create a string named str2 with a value of "apple".
We convert str2 into an iterator of characters using chars().
We collect the characters into a vector.
We reverse the vector using into_iter().rev().
Finally, we collect the characters back into a string and print the result.

Rust Program

fn main() {
    let str2 = String::from("apple");
    let reversed_str2: String = str2.chars().collect::<Vec<char>>().into_iter().rev().collect();
    println!("Reversed string is: {}", reversed_str2);
}

Output

Reversed string is: elppa

Summary

In this tutorial, we learned How to Reverse a String in Rust language with well detailed examples.

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How to Reverse a String in Rust - Step by Step Examples

How to Reverse a String in Rust ?

Answer

✐ Examples

1 Reversing "Hello World" String

Rust Program

Output

2 Reversing "apple" String

Rust Program

Output

Summary

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