ant-design/components/table/createStore.tsx

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import assign from 'object-assign';
export interface Store {
setState: (Object) => void;
getState: () => any;
subscribe: (listener: () => void) => () => void;
}
export default function createStore(initialState): Store {
let state = initialState;
const listeners: any[] = [];
function setState(partial) {
state = assign({}, state, partial);
for (let i = 0; i < listeners.length; i++) {
listeners[i]();
}
}
function getState() {
return state;
}
function subscribe(listener) {
listeners.push(listener);
return function unsubscribe() {
const index = listeners.indexOf(listener);
listeners.splice(index, 1);
};
}
return {
setState,
getState,
subscribe,
};
}