rustHow to convert a Rust byte slice to a str?

To convert a Rust byte slice to a str, you can use the str::from_utf8 function. This function takes a byte slice and returns a Result<&str, Utf8Error>.

Example code

let bytes = b"Hello world!";
let s = str::from_utf8(bytes).unwrap();
println!("{}", s);

Output example

Hello world!

Code explanation

• let bytes = b"Hello world!";: This creates a byte slice containing the string "Hello world!".
• let s = str::from_utf8(bytes).unwrap();: This calls the str::from_utf8 function, passing in the byte slice bytes. The unwrap method is used to get the &str from the Result returned by the function.
• println!("{}", s);: This prints the &str to the console.

Helpful links

• str::from_utf8

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