Empty Object and/or Array

[LetsMelon]

Question

Should this behaviour (see examples) be fixed?

Examples

1. addIdToArray([])

addIdToArray([]);
// --> []

2. addIdToArray([{}, {}])

addIdToArray([{}, {}]);
// --> [ { id: 1 }, { id: 2 } ]

3. addIdToArray([[], []])

addIdToArray([[], []]);
// --> [ { id: 1 }, { id: 2 } ]

4. addIdToArray(undefined)

addIdToArray(undefined);
// --> [ { id: 1 } ]