the primitive value types, you may be
wondering how to work with collections of things. Janet has a small number of
core data structure types that are very versatile. Tables, structs, arrays,
tuples, strings, and buffers, are the 6 main built-in data structure types.
These data structures can be arranged in a useful table describing their
relationship to each other.
</p>
<table>
    <tr><th>Interface</th> <th>Mutable</th> <th>Immutable</th></tr>
    <tr><td>Indexed</td> <td>Array</td> <td>Tuple</td></tr>
  