How to get bytes to JavaScript from a Rust function?

Asked Jul 12 '20 at 12:16

Active Jul 12 '20 at 12:21

Viewed 30 times

I have a part of code written in Rust and I want to get some bytes in JS.

file.rs:

#[no_mangle]
pub extern "C" fn get_char_successfully() -> char {
    'a'
}
#[no_mangle]
pub extern "C" fn get_bytes_unsuccessfully() -> String {
    String::from("string");
}

file.js:

const rs = await import('../file-rs.wasm')
let a = rs.get_char_successfully(); // work
let b = get_bytes_unsuccessfully(); // not working, empty

I use wasm-pack

edited Jul 12 '20 at 12:21

asked Jul 12 '20 at 12:16

sergej.p

1

Are you using wasm-pack or something? – D. Pardal Jul 12 '20 at 12:19
I use wasm-pack – sergej.p Jul 12 '20 at 12:21
I am by no means a Rust expert, but don't you have to call `.bytes()` to get bytes from a String? – Jared Smith Jul 12 '20 at 12:36

How to get bytes to JavaScript from a Rust function?

0 Answers0