join

Function join 

Source
pub fn join<'s, C, N>(
    current: C,
    new: N,
) -> impl Iterator<Item = (&'s str, &'s str)> + Clone
where C: Iterator<Item = (&'s str, &'s str)> + Clone, N: Iterator<Item = (&'s str, &'s str)> + Clone + 's,
Expand description

Joins two key-value (&str, &str) iterators removing from current any element whose key is present in new.