Question

How to get the character of a string by index in Rust

Answer 1

fn main() {        
    let str : String = "rust".to_string();

    println!("{}", str.chars().nth(0).unwrap());
    println!("{}", str.chars().nth(1).unwrap());
}




/*
run:

r
u

*/

 

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Answer 2

fn main() {        
    let str : String = "rust".to_string();
    let size = str.len();

    for i in 0..size { 
        println!("{}", str.chars().nth(i).unwrap());
    }
}




/*
run:

r
u
s
t

*/

 

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