Function select_from 

pub fn select_from<K: AsRef<str>, V: AsRef<str>>(
    name: impl AsRef<str>,
    options: impl IntoIterator<Item = (K, V)>,
    selected: Option<&str>,
) -> Element

A <select name="…"> holding one <option> per (value, label) pair.

The option whose value equals selected is marked selected; pass None when none is.

Examples

use molt::prelude::*;
let countries = [("br", "Brasil"), ("ar", "Argentina")];
assert_eq!(
    select_from("country", countries, Some("ar")).render(),
    concat!(
        r#"<select name="country"><option value="br">Brasil</option>"#,
        r#"<option value="ar" selected>Argentina</option></select>"#,
    )
);