[TimePicker] To match DatePicker value

[justinko]

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[oliviertassinari]

@justinko Could you explain your use case?
We also use the any type with the TextField component. But I think that we can be more strict regarding the value type here.

[justinko]

I receive a warning if I set the TimePicker value to a string, because it expects an object ...

DatePicker is any:

https://github.com/callemall/material-ui/blob/master/src/DatePicker/DatePicker.js#L134

Why would TimePicker be different?

[oliviertassinari]

I'm confused. Why do you provide a string to this value property?
As far as I know, this component only works with the date type. Hence, I think that we should be more strict with the propTypes.

[justinko]

Ahh, okay, understood. I need to pass a Date object. Thanks!