Should I use memo?

[rejhgadellaa]

If I have a component that I'm pretty sure should only update when the props change, should I wrap it in memo?

I'm asking because it's located in compat, not in the core, so I'm wondering if Preact has optimizations in place that make memo (more or less) redundant and the addition is just to support the React api?

[rschristian]

You can use it, sure.

To paraphrase Marvin, it's in preact/compat as we think it's not a great API, comparatively. Signals are a much more attractive approach for dealing with unnecessary rerenders, and goes a lot further than memo does. We don't have memo in core because we don't think it's an essential piece, not because it doesn't serve a purpose.