mirror of
https://github.com/webstudio-is/webstudio.git
synced 2026-11-03 18:48:06 +09:00
Bogdan Chadkin
886f839951
Ref https://prettier.io/blog/2023/07/05/3.0.0.html Smaller package size, trailing comma for types always enabled, though I disabled it for code.
31 lines
954 B
TypeScript
31 lines
954 B
TypeScript
import { type AnyStore, type StoreValue, computed } from "nanostores";
|
|
import { shallowEqual } from "shallow-equal";
|
|
|
|
// https://github.com/nanostores/nanostores/blob/0d27b0d18d0f471ca0ac5439137d3dac71d01f08/computed/index.d.ts
|
|
|
|
type StoreValues<Stores extends AnyStore[]> = {
|
|
[Index in keyof Stores]: StoreValue<Stores[Index]>;
|
|
};
|
|
|
|
// eslint-disable-next-line @typescript-eslint/no-explicit-any
|
|
type Comparable = Record<string, any> | any[] | null | undefined;
|
|
|
|
export const shallowComputed = <
|
|
Value extends Comparable,
|
|
OriginStores extends AnyStore[],
|
|
>(
|
|
stores: [...OriginStores],
|
|
cb: (...values: StoreValues<OriginStores>) => Value
|
|
) => {
|
|
let prevComputed: Value;
|
|
return computed<Value, OriginStores>(stores, (...values) => {
|
|
const nextComputed = cb(...values);
|
|
if (shallowEqual(prevComputed, nextComputed)) {
|
|
return prevComputed;
|
|
} else {
|
|
prevComputed = nextComputed;
|
|
return nextComputed;
|
|
}
|
|
});
|
|
};
|