Question

How to case insensitive check if a string starts with a specified substring in Rust

Answer 1

fn starts_with_case_insensitive(s: &str, prefix: &str) -> bool {
    s.to_lowercase().starts_with(&prefix.to_lowercase())
}

fn main() {
    let string = "Rust Programming Language";
    let substring = "RUST";

    let result = starts_with_case_insensitive(string, substring); 

    println!("{}", result); 
}


     
/*
run:
  
true
    
*/

 

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