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RUST Function return value

Functions may also return a value along with control, back to the caller. Such functions are called returning functions.

Boolean Example of return value in function

fn is_Even_Number() -> bool {
 return 10 % 2==0;
}

fn main(){
 println!("the number 10 Even Check is: {} ", is_Even_Number());
}

Output for above code

the number 10 Even Check is: true


String Example of return value in function

fn get_First_Name() -> String {
 return "Jhon";
}

fn main(){
 println!("Cadidate First Name is: {} ", get_First_Name());
}

Output for above code

Cadidate First Name is: Jhon


Integer Example of return value in function

fn get_First_Name() -> i32 {
 return 19;
}

fn main(){
 println!("Cadidate age is: {} ", get_First_Name());
}

Output for above code

Cadidate age is: 19


Conclusion

In this page (written and validated by ) you learned about Rust Function return value . What's Next? If you are interested in completing Rust tutorial, your next topic will be learning about: Rust Function passing parameter.



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