31 lines
554 B
JavaScript
31 lines
554 B
JavaScript
export default function create(initialState) {
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let state = initialState;
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const listeners = [];
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function setState(partial) {
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state = { ...state, ...partial };
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for (let i = 0; i < listeners.length; i++) {
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listeners[i]();
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}
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}
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function getState() {
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return state;
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}
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function subscribe(listener) {
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listeners.push(listener);
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return function unsubscribe() {
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const index = listeners.indexOf(listener);
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listeners.splice(index, 1);
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};
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}
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return {
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setState,
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getState,
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subscribe,
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};
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}
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