Dropdown value/defaultValue boolean

[DennisKo]

Steps

Have a Dropdown with following possible options for value/defaultValue:

const options = [
  { key: 1, text: 'Yes', value: true },
  { key: 2, text: 'No', value: false }
]

Expected Result

It should show no warning.

Actual Result

It shows a warning Warning: Failed prop type: Invalid prop value supplied to Dropdown.

Version

0.78.2

Testcase

https://codesandbox.io/s/9qoymkzqp4

[GCrispino]

As you can see here, the type of value can either be a string, a number, or an array of one of these types.
I wouldn't know why boolean can't be a possible value for this prop, but there's probably a reason.

[DennisKo]

I saw this file and I googled a bit but could not find a valid reason for no boolean... Maybe anyone from the core team knows better?

[GCrispino]

I see... let’s wait for the maintainers, they should know something about it

[levithomason]

This is due to an old artifact, a hidden select element. See #2572 for the fix.

Note, this is just a warning and can be safely ignored in your app for now. We'll merge and ship the fix soon to rid the nuisance.

[DennisKo]

Sorry to comment on a closed issue and thanks for the quick fix but

Note, this is just a warning and can be safely ignored in your app for now. We'll merge and ship the fix soon to rid the nuisance.

A member of the react core team and creator of CRA/Redux wants to move the community to a different approach: facebook/react#10633

In React we intentionally rely on warnings treated as errors by the user. In fact at Facebook we show a modal dialog for each warning and we may enable the same behaviour in the open source version in the future.