n class="binding-type">cfunction</span> <span class="binding-type"><a href="https://github.com/janet-lang/janet/blob/c0d7a49/src/core/tuple.c#L80">source</a></span> <pre class="binding-text">(tuple/type tup)

Checks how the tuple was constructed. Will return the keyword :brackets if the tuple was parsed with brackets, and :parens otherwise. The two types of tuples will behave the same most of the time, but will print differently and be treated differently by the compiler.</pre><a href="https://janetdocs.org