@mui/x-charts
Version:
The community edition of MUI X Charts components.
22 lines • 465 B
JavaScript
export class ChartStore {
constructor(value) {
this.value = value;
this.listeners = new Set();
}
subscribe = fn => {
this.listeners.add(fn);
return () => {
this.listeners.delete(fn);
};
};
getSnapshot = () => {
return this.value;
};
update = updater => {
const newState = updater(this.value);
if (newState !== this.value) {
this.value = newState;
this.listeners.forEach(l => l(newState));
}
};
}