Function filter 

pub fn filter<F>(doc: &Document, keep: F)
where
    F: Fn(&Selection<'_>) -> bool,

Filter links based on predicate.

Removes all <a> tags that don’t match the predicate.

Example

use html_cleaning::links;
use dom_query::Document;

let doc = Document::from(r#"<a href="https://good.com">Keep</a><a href="https://bad.com">Remove</a>"#);
links::filter(&doc, |sel| {
    sel.attr("href").map(|h| h.contains("good")).unwrap_or(false)
});

assert_eq!(doc.select("a").length(), 1);