rustrust string as vec u8

A String in Rust is a UTF-8 encoded, growable array of bytes. It can be converted to a Vec<u8> using the as_bytes() method. This method returns a &[u8] which can be converted to a Vec<u8> using the to_vec() method.

Example code

let s = String::from("Hello world!");
let v: Vec<u8> = s.as_bytes().to_vec();

Output example

[72, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100, 33]

Code explanation

• let s = String::from("Hello world!");: This line creates a String from the given string literal.

• let v: Vec<u8> = s.as_bytes().to_vec();: This line calls the as_bytes() method on the String to get a &[u8] slice, and then calls the to_vec() method on the slice to convert it to a Vec<u8>.

Helpful links

• String
• Vec
• as_bytes
• to_vec

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