React store for straightforward shared state management

Dealing with shared state similarly to React's useState().

import {Store, useStore} from 'idst';

• Wrap up shared data into new Store(data), put it into a React Context;

• Pick the store from the context with the React's useContext() hook from within a component;

• Read the store state and subscribe to its updates: let [state, setState] = useStore(store); Alternatively, use let [state, setState] = useStore(store, false); (with the hook's second parameter) to turn off the subscription to store state updates;

• Update parts of the shared data: setState({x: 10}); or setState(state => ({x: state.x + 5}));

• Have as many stores as needed.

Live demo

See also idstm, an immutable store with a mutable interface of setState().
(idstm's setState() is handier when it comes to changing nested properties in the state and it generally results in a more concise code, but it comes with an extra dependency.)

The package name is the initialism for immutable data store.