Additional prop for x selected

[Aidurber]

An additional prop, not sure on the name, maybe manyDisplayedPlaceholder.

Not sure if a render prop or a sprintf style input like:

"You have selected %s" 

The render prop would be called with the number of selected items.

Leaning towards the latter.

[AndreBastos23]

Yes that would suffice.
Do you think its possible to have maybe a prop that instead of saying "X selected" when all are selected, just says another string? For example "All" or something.

[Aidurber]

Yes, since it will be a sprintf style input you could have whatever you want. The API will look like so:
manyDisplayedPlaceholder="Whatever"

If you want the number of items selected:
manyDisplayedPlaceholder="That's %s items selected"

It would be worth adding yet another prop allSelectedText which is shown when all items are selected.

No items selected: placeholder OR "None selected" (default)
Some items selected and <= numberDisplayed: "Item 1, Item 2"
Some items selected and > numberDisplayed: manyDisplayedPlaceholder OR "x selected" (default)
All selected: allSelectedText OR "x selected" (default)

[AndreBastos23]

Yeah that would be perfect :)