Does createStore make any sense at all?

[MateuszDev96]

Discussed in #2390

^{Originally posted by MateuszDev96 December 30, 2024}
Personally, I don't use createStore in my project even for more complex data because there is a bit too much ‘magic’ there for me and using createSignal I can handle react-js without any problems and I already explain what I think about all this

Example from react-js

const [complexData, setComplexData] = useState({
  myValue: ‘my shallow value’,
  deep: {
    nested: {
      value: ‘my nested value’
    }
  }
})

const myValue = useMemo(() => complexData.myValue, [complexData.myValue]) // logs ‘my shallow value’
const deepNestedValue = useMemo(() => complexData.deep.nested.value, [complexData.deep.nested.value]) // logs ‘my nested value’

React.useEffect(() => [
  // run when `myValue` or `deepNestedValue` changed
], [myValue, deepNestedValue])

and react handles the reactivity after the setter is called

Example solid-js

const [complexData, setComplexData] = createSignal({
  myValue: ‘my shallow value’,
  deep: {
    nested: {
      value: ‘my nested value’
    }
  }
})

const myValue = createMemo(() => complexData().myValue) // logs ‘my shallow value’
const deepNestedValue = createMemo(() => complexData().deep.nested.value) // logs ‘my nested value’

createEffect(() => {
  myValue()
  deepNestedValue()
  // run when `myValue` or `deepNestedValue` changed
})

I use useMemo or createMemo which basically gives the same results in both solutions and I don't understand why we need to set Proxy