Rust code shared from the playground

playground.rs

fn main() {
   let string = "Rust41Fun".to_string();
   let res = string.chars().skip_while(|c| !c.is_digit(10)).collect::<String>();
   let res = i32::from_str_radix(&res[0..1], 10);
   match res {
   Ok( i) => { println!("{}", i) },
   Err(e) => { println!("Err: {}", e) }
   }
}