Function unflatten

Unflatten a flat object.

Returns

Actual object with all it's nested structured reconstructed from the flattened properties.

Example

unflatten({
   a: 1,
   "b.0": 0,
   "b.1": 1,
   "c.c1": 1,
   "c.c2": 2,
});

// {
//    a: 1,
//    b: [0, 1],
//    c: {c1: 1, c2: 2}
// }