React 之 Context 的变迁与背后实现 about blog HOT 1 OPEN

// Provider
    class Provider extends React.PureComponent {
        componentDidUpdate() {
            store.publish(this.props.value);
        }

        componentDidMount() {
            store.publish(this.props.value);
        }

        render() {
            return this.props.children;
        }
    }

 store.subscribe(value => {
                this.setState({
                        value
                });
            });