Search⌘ K
Home
Courses
Rust Programming Language

Solution Review 2: Display Output Using Placeholders

This lesson gives a detailed solution review of the challenge in the previous lesson.

We'll cover the following...

Solution:

Rust 1.40.0
fn test() {
    println!("{}", 1);
    println!("{}{}", 2, 2);
    println!("{}{}{}", 3, 3, 3);
    println!("{}{}{}{}", 4, 4, 4, 4);
    println!("{}{}{}{}{}", 5, 5, 5, 5, 5);
}

Explanation

  • On line 2, println! takes a placeholder {} and 1.

  • On line 3, ...