The ... destructuring for arrays is an excellent improvement that makes
javascript code more readable and robust.
On seeing the syntax for the first time I expected to be able to use it
more completely. For example:
```js
const [column, ...restOfColumns] = columns;
const objProps = column.valueCh
The reason this doesn't work is because `...` in this context is not array
destructuring - it's *iterable* destructuring. When you spread a string,
you don't get each code unit, you get each code *point* - and similarly,
you can spread any iterator, array or not, and collect items from it
Iterator
Thanks Jordan, as you describe iterable destructuring, it makes
implementation sense.
The square brackets (and documentation eg:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment)
had me thinking of it as destructuring into an array and then mappi
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