[SOLVED] How to select specific string in rust

Question

let numbers = "1234567890";
I want to select 4 in that variable how to do that in rust?

Answer 1

If you know you want "4", why the elaborate scheme to get it? In other words: what are you really up to? ;) The more we know about what you want to achieve the better we can help.

Answer 2

//this is the code
let mut password: String = "".to_owned();
// characters
let upper_case = "PYFGCRLAOEUIDHTNSJKXBMWV";
let lower_case = "pyfgcrlaoeuidhtnsjkxbmwv";
let numbers = "0123456789";
for i in 0..21 {
// get random number
let mut rng = thread_rng();
let select_random_char = rng.gen_range(0..lower_case.chars().count());
let result = lower_case.chars().nth(select_random_char).unwrap();
password += result;
};
// print password
println!("{}", password);

Answer 3

I still don't know wherein the problem lies. It seems you have already managed to select a char out of a string.
There are other problems though, such as the range you pass to gen_range, it needs to be two paramerers lower limit and upper limit. And you cannot concat a string and char. But you can push the char into the string using password.push(result);

Answer 4

Great 👍

Answer 5

print("GOOGLE.COM")

Answer 6

I got new error man

Answer 7

Already solved it man

Answer 8

Thank you for telling push method in rust

Answer 9

Now my password generator project is finished