rustHow do I convert a string to a vector of u8 in Rust?

To convert a string to a vector of u8 in Rust, you can use the as_bytes() method on a String type. This will return a &[u8] type, 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!");: creates a String type from the string literal "Hello world!"
• let v: Vec<u8> = s.as_bytes().to_vec();: creates a Vec<u8> type from the &[u8] type returned by the as_bytes() method on the String type

Helpful links

• String::as_bytes()
• Vec::to_vec()

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