Multi selector kind

The Multi selector kind is used to define a group of elements in the HTML file. Since web_sys::Document::query_selector_all returns a web_sys::NodeList wrapped in a Result, it's impossible to return a canonical type for the group of elements. Therefore, the type of the variable in Rust will be web_sys::NodeList.

Arguments

The Multi selector kind can also be seen a function where

• the first argument (mandatory) is the selector itself and
• the second argument (optional) is the "return type kind".

For example, the macro invocation below:

#![allow(unused)]
fn main() {
initialize_elements!(
    html: "index.html",
    elements: {
        let layers = Multi(".layer");
    }
);
}

will expand to the following code:

#![allow(unused)]
fn main() {
let window = web_sys::window().unwrap();
let document = window.document().unwrap();

let layers: web_sys::NodeList = document
    .query_selector_all(".layer")
    .unwrap();
}

You can learn more about return type kinds in the dedicated section.