Speaking for Redux at least: developer tool integration, mindshare and doesn't shoehorn OOP into an FP approach to UI.
What are the advantages of this solution over features already in React (no need of Redux) such as context and the reduce hook?
What are the advantages of this solution over features already in React (no need of Redux) such as context and the reduce hook?
Functional UI is still need some sort of imperative shell [1] to manage state. You can use OOP and Remold just for "reactive" behaviour, and implement all state transitions inside object in a functional way. For example:
// Pure function
const addProduct = (order, product) => ({
total: order.total + product.price,
});
// Imperative state
class Order extends Remold {
state = {
total: 0
};
@act setState(newState) { this.state = newState; }
addProduct(p) { this.setState(addProduct(this.state, p)); }
}
From the React Documentation about Context feature [2]:
> Apply it sparingly because it makes component reuse more difficult.
With Remold you don't have any problems with component's reusability. You just attach pure component to an object and "connect" object's state into component's props:
// Pure component
const OrderWidget = ({ total }) => <div class="widget">{total}</div>;
// Pure function
const addProduct = (order, product) => ({
total: order.total + product.price,
});
// Imperative state
class Order extends Remold {
state = {
total: 0
};
@act setState(newState) { this.state = newState; }
addProduct(p) { this.setState(addProduct(this.state, p)); }
@mold(OrderWidget) asWidget() { return { total: this.state.total }; }
}
[2] https://reactjs.org/docs/context.html?no-cache=1#before-you-...
At the end of the day, you can write whatever you want from scratch, but it becomes a cost/benefit analysis.
I like this repo for getting into the guts of how popular tech works: https://github.com/danistefanovic/build-your-own-x