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How to match a String against string literals in rust?

In rust we can use match syntax over string as_srt() function and we provide the conditions inside the match. See below example:

fn main() {
    let stringthing = String::from("c");
    match stringthing.as_str() {
        "a" => println!("10"),
        "b" => println!("20"),
        "c" => println!("30"),
        _ => println!("something else!"),




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