Converting an int to String in Rust

Rust offers efficient ways to handle data type conversions. One such common task is converting an integer to a string. Let’s dive into how to do this.

Using the to_string Method

Rust’s standard library provides the direct method to_string() for this purpose.

fn main() {
    let num = 42;
    let num_as_string = num.to_string();
    println!("{}", num_as_string); // Outputs: 42
}

The format! Macro: A Flexible Approach

When you need more control over formatting, the format! macro comes in handy.

fn main() {
    let num = 42;
    let num_as_string = format!("Number: {}", num);
    println!("{}", num_as_string); // Outputs: Number: 42
}

Conclusion

With these two straightforward methods, Rust ensures integer-to-string conversions are intuitive and efficient.

Whether you opt for the to_string() method or the format! macro, Rust has you covered.