rustAppend string in Rust

String concatenation in Rust can be done using the + operator or the format! macro.

Code example:

let mut s = String::from("Hello");
s.push_str(", world!");
println!("{}", s);

Output

Hello, world!

Explanation of code parts:

1. let mut s = String::from("Hello"); - This line creates a mutable String variable s and assigns it the value Hello.
2. s.push_str(", world!"); - This line appends the string ", world!" to the existing string s.
3. println!("{}", s); - This line prints the value of s to the console.

Helpful links:

1. Rust Documentation - Strings
2. Rust by Example - Strings

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