[beaconstudios]

the parent doesn't have to memoise the component though. You can do this:

    export default React.memo(function myComponent(props) {
      // implementation
    });

though you would likely want to set displayName before exporting, in reality.

[jon-wood]

In which case, I stand corrected. I’ve not used React for a while and wasn’t aware that was possible.

[FalconSensei]

But that is still memo-ing, just in a different part of the code. And I'm not sure wrapping all components in React.memo is a good practice, otherwise all components would be memo-ed by default. `shouldComponentUpdate` is more explicit