Function url_encoded_data::from

pub fn from(s: &str) -> UrlEncodedData<'_>

global fn: from &str

use url_encoded_data::from;
let q = from("abcd=efg");
assert!(q.exists("abcd"));
assert!(q.exists("abcd"));
let first_pair = q.iter().next().unwrap();
let (k, v) = first_pair;
assert_eq!(k.as_ref(), "abcd");
assert_eq!(v.as_ref(), "efg");