Question

How to concatenate strings in Rust

Answer 1

fn main() {
    let string1 = String::from("rust");
    let string2 = String::from("c c++");

    let new_string = format!("{}{}{}", string1, " ", string2);
    
    println!("{}", new_string);
}
 




/*
run:
    
rust c c++
    
*/

 

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Answer 2

fn main() {
    let mut string1 = "rust".to_string();
    let string2 = "c c++".to_string();
    
    string1.push_str(" ");
    string1.push_str(&string2);
 
    println!("{}", string1);
    println!("{}", string2);
}
 




/*
run:
    
rust c c++
c c++
    
*/

 

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Answer 3

fn main() {
    let string1 = "rust";
    let string2 = "c c++";

    let result = [string1, string2].join(" ");
    
    print!("{}", result);
}





/*
run:
    
rust c c++

*/

 

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Answer 4

fn main() {
    let string1 = "rust";
    let string2 = "c c++";

    let result = format!("{} {}", string1, string2);
    
    print!("{}", result);
}





/*
run:
    
rust c c++

*/

 

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Answer 5

fn main() {
    let string1 = "rust".to_string();
    let string2 = "c c++".to_string();

    let result = string1 + " " + &string2;
    
    print!("{}", result);
}





/*
run:
    
rust c c++

*/

 

70+ SQL courses for beginners and professionals