Issue on TypeScript `FieldRenderProps` typings

https://github.com/final-form/react-final-form/blob/a3ca5f169da5cb5abcf53d60285d8d43b08c427f/typescript/index.d.ts#L25

This typing does not work well with other react libraries.

For example with rc-select: http://react-component.github.io/select/#select-props in the onChange prop you don’t have access to the event, but only the value selected.

This is valid also for onFocus and onBlur props

[bcnichols3]

This might be a tangential issue, but I’m seeing Form’s component prop demands a component whose props are defined as FieldRenderProps, which does not allow additional keys. This means that I’m only allowed props on my custom field components that are defined by React Final Form, which means they can’t be very custom at all. I can get around this with using children instead but does that feel a little hacky?

[francoislg]

Since onChange should work with a simple value, I workaround-ed it with onChange={(value: string) => (input as any).onChange(value)