Grid.useBreakpoint is empty on initial render

• I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

Steps to reproduce

1. consume Grid.useBreakpoint();
2. initial render will display empty object

What is expected?

I would expect Grid.useBreakpoint() to return an initial value on the first render. This could also potentially not rerender a component consuming Grid.useBreakpoints().

You could initiate it by checking window.innerWidth on mount.

I would be happy to create a PR for this.

What is actually happening?

initial render of Grid.useBreakpoint() displays an empty object

Environment	Info
antd	4.16.13
React	17.0.2
System	macOs BigSur
Browser	Firefox 93.0

[zombieJ]

This is by design since first render with screen info will break SSR hydrate.

[GeorgeFlorian]

This is by design since first render with screen info will break SSR hydrate.

I see, but if I don’t use SSR, how can I make my own hook that doesn’t return undefined on the first render?

Have you found a solution to this ? I am also in need to know the breakpoint on initial render.