SolidJS•2y ago

createMemo with `equals: false` not reactive when mutating reference

I am trying to prevent to create DOMMatrix with each calculation, so I thought to mutate 1 with createMemo(() => ..., {equals: false}), assuming it would trigger all subscriptions even when returning the same value (in this case the mutated DOMMatrix), but it doesn't as you can see: https://playground.solidjs.com/anonymous/1a137694-7267-439b-a7d3-8164a541e800 Anybody an idea how to approach this?

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3 Replies

bigmistqke•2y ago

Mm, it doesn't work with primitives either like

const memo = createMemo(
  () => {
    dep()
    return 0;
   },
  {equals: false}
);

const memo = createMemo(
  () => {
    dep()
    return 0;
   },
  {equals: false}
);

https://playground.solidjs.com/anonymous/69e08a25-b614-43eb-b537-1c8faf5d2566 🤔 bug?

thetarnav•2y ago

options go to the 3rd param 2nd is the initial value

bigmistqke•2y ago

sweet thanks 🙏 🙏

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createMemo with `equals: false` not reactive when mutating reference