Method join

crates/wtf8/src/lib.rs:333–349

(sep: impl AsRef<Wtf8>, iter: I)

    }

    pub fn join<I, S>(sep: impl AsRef<Wtf8>, iter: I) -> Wtf8Buf
    where
        I: IntoIterator<Item = S>,
        S: AsRef<Wtf8>,
    {
        let sep = sep.as_ref();
        let mut iter = iter.into_iter();
        let mut buf = match iter.next() {
            Some(first) => first.as_ref().to_owned(),
            None => return Wtf8Buf::new(),
        };
        for part in iter {
            buf.push_wtf8(sep);
            buf.push_wtf8(part.as_ref());
        }
        buf
    }

    pub fn clear(&mut self) {
        self.bytes.clear();