Have validators reflect that values are optional by default.

[mthadley]

Given the following configuration:

MyComponent.PROPS = {
  foo: Config.number().isRequired(),
  bar: Config.number()
};

It seems that bar should be considered optional, since we omitted the isRequired call. However, validator warnings will still be thrown if a value is not passed.

It seems like we may want something like Config.number() to be implicitly Config.maybe(Config.number()).

Any thoughts on this would be greatly appreciated, thanks!

[mairatma]

That makes sense, if a value is not listed as required than it should behave as optional, otherwise it'll be very confusing. Your suggestion of having validators work as maybe by default is a good one. In this case we may actually not need to expose Config.maybe at all then, since that's always implied.

[mairatma]

This is now available in version 2.1.3.