Are store reactive?

const [params, setParams] = createStore<Params>(
props.value ?? {
data: [
{ points: 100, requirement: 10 },
{ points: 50, requirement: 5 },
{ points: 0, requirement: 0 },
],
},
);

createEffect(() => {
console.log(params.data.at(0));
});
const [params, setParams] = createStore<Params>(
props.value ?? {
data: [
{ points: 100, requirement: 10 },
{ points: 50, requirement: 5 },
{ points: 0, requirement: 0 },
],
},
);

createEffect(() => {
console.log(params.data.at(0));
});
It consoles several time at rendering, but when modifying the values no more logs
12 Replies
binajmen
binajmenOP2y ago
I reviewed the doc https://docs.solidjs.com/concepts/stores#accessing-store-values I have a repro here https://stackblitz.com/edit/solidjs-templates-qaqznn?file=src%2FApp.tsx it shows when adding or removing an element, not when editing the content
bigmistqke
bigmistqke2y ago
Mb .at is not reactive? params.data[0] should work.
binajmen
binajmenOP2y ago
to be honest I was expectinghoping this to log:
createEffect(() => {
console.log(params.data);
});
createEffect(() => {
console.log(params.data);
});
bigmistqke
bigmistqke2y ago
That wouldn't be finegrained
binajmen
binajmenOP2y ago
*was hoping
bigmistqke
bigmistqke2y ago
There is a deep tracking utility in solid-primitives Iirc
binajmen
binajmenOP2y ago
createMutable?
bigmistqke
bigmistqke2y ago
Solid Primitives
A library of high-quality primitives that extend SolidJS reactivity
binajmen
binajmenOP2y ago
I will have a look thanks i am wondering though what is the purpose of stores if not tracking nested info
Alex Lohr
Alex Lohr2y ago
They are tracking nested info, but only the leaves, not the branches.
bigmistqke
bigmistqke2y ago
Otherwise createEffect(() => store[0]) would also be called when store[1] changes
binajmen
binajmenOP2y ago
ok it makes sense

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