Question

How to generate random string in Rust

Answer 1

use rand::Rng;

fn generate_random_string(length: usize) -> String {
    let all_characters = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_";
    
    let count_characters = all_characters.len();
    let mut rng = rand::thread_rng();
    let mut random_string = String::with_capacity(length);

    for _ in 0..length {
        let idx = rng.gen_range(0..count_characters);
        random_string.push(all_characters.chars().nth(idx).unwrap());
    }

    random_string
}

fn main() {
    println!("{}", generate_random_string(10));
    println!("{}", generate_random_string(6));
}



 
 
/*
run:

_Gtz8IT6VI
tUE0zh

*/

 

70+ SQL courses for beginners and professionals