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Discussion on: Re-rendering in React

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marzelin profile image
Marc Ziel

Not true, huh?

I've provided an example code, have you even checked it? Does SomeComponent re-renders when you click the button? So annoying...

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nrf profile image
NRF Author

I stand corrected. But can I ask, why are you re-assigning the component to a variable and then using that variable to render the component? Because this seems to be why SomeComponent is not re-rendering.

It does re-render when you plug it in directly with <SomeComponent /> even though its still not changing when count updates.

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marzelin profile image
Marc Ziel

I'm not re-assigning anything. someComponent is a React element and <SomeComponent/> is a function call that returns a React element. These are two different things from JavaScript standpoint.

If you have A = () => ({}) then A() !== A() but when a = A() then a === a. That's the gist of it.