Support value property for multiselect

[tellnobody1]

React warns when using selected for option. They recommend to use value for select.
But when select is multiple it's impossible to pass array of values:

value :: String -> Props

In latest version of React selected for several option won't work.

In JSX/JavaScript it's possible to send value as string and array:

<select value={'A'}>
<select multiple={true} value={['B', 'C']}>

https://reactjs.org/docs/forms.html#the-select-tag

[paf31]

Can we call this values or valueArray or something else please?

[tellnobody1]

I renamed to valueArray. To keep connection with property name (value).

[paf31]

Hmm, presumably if we use the wrong one, it'll be a runtime error? That's a shame, but there's not much we can do here without drastically changing the way the API works.

Thanks!

[tellnobody1]

<select multiple={false} value={['B', 'C']}>

In this case React will print warning:

Warning: The value prop supplied to must be a scalar value if multiple is false.

[ethul]

Looks good. Thanks for this!