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
binajmen5w 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
bigmistqke5w ago
Mb .at is not reactive? params.data[0] should work.
binajmen
binajmen5w ago
to be honest I was expectinghoping this to log:
createEffect(() => {
console.log(params.data);
});
createEffect(() => {
console.log(params.data);
});
bigmistqke
bigmistqke5w ago
That wouldn't be finegrained
binajmen
binajmen5w ago
*was hoping
bigmistqke
bigmistqke5w ago
There is a deep tracking utility in solid-primitives Iirc
binajmen
binajmen5w ago
createMutable?
bigmistqke
bigmistqke5w ago
Solid Primitives
A library of high-quality primitives that extend SolidJS reactivity
binajmen
binajmen5w 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 Lohr5w ago
They are tracking nested info, but only the leaves, not the branches.
bigmistqke
bigmistqke5w ago
Otherwise createEffect(() => store[0]) would also be called when store[1] changes
binajmen
binajmen5w ago
ok it makes sense