Question

How to replace a substring in a string with Rust

Answer 1

fn main() {
    let s = "rust c c++ java";
    
    let result = s.replace("++", "--");
    
    println!("{}", result);
}




/*
run:

rust c c-- java

*/

 

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Answer 2

fn main() {
    let mut s = String::from("rust c c++ java");
    
    s = s.replace("++", "--");
    
    println!("{}", s);
}




/*
run:

rust c c-- java

*/

 

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