How to put React theory into practice?
To go deeper into React, it is crucial to move from theory to practice. This involves applying principles such as component composition and state placement in real scenarios. To facilitate this learning, you can work with a specific repository called "React Patterns Render course" in the Platzi community. It is important to remember that we start with the commits inherited from the previous course called "Beginning of the render patterns course". If you want to replicate this environment, just install the dependencies with npm install and run the development server with npm start.
How to structure components using dummy components?
Before diving into the real code structure, it is useful to experiment with dummy components that allow you to visualize how the application should be organized. This is accomplished by temporarily commenting out the main component(App) and creating basic components that mimic the desired overall structure.
Here is a basic example of how you might structure them:
function App() { return ( < <React.Fragment>
<ToDoHeader />
<ToDoList />
</React.Fragment> );}
function ToDoHeader() { return ( <React.Fragment>
<ToDoCounter />
<ToDoSearch />
</React.Fragment> );} }
function ToDoList() { return (< <React. Fragm ent>
<ToDoItem /><ToDoItem />
</React.Fragment> );}
How is state handled in a React application in an optimal way?
In React, sharing state between components can get complicated if not handled correctly. Traditionally, state and its updaters are passed by props from component to component, which can be tedious and unwieldy in larger applications. An alternative is to use the Provider pattern which facilitates the distribution of state throughout the component structure.
function App() { const [state, setState] = React.useState(initialState);
return ( <<ToDoProvider value={{state, setState}}>
<ToDoHeader />
<ToDoList />
</ToDoProvider> );}
How to optimize component composition?
A good practice is to let components define their own children through their children properties, rather than explicitly declaring which components they should contain. This provides greater flexibility for sharing and reusing state.
function ToDoHeader({ children }) { return <header>{children}</header>;} }
function ToDoList({ children }) { return ( <section className="ToDoList-container">
{children}
</section> );}
And so you call them in App:
function App() { return ( <React.Fragment>
<ToDoHeader>
<ToDoCounter />
<ToDoSearch />
</ToDoHeader>
<ToDoList>
<ToDoItem/>
</ToDoList>
</React.Fragment> );}
What are the advantages of component composition and state placement in React?
Properly implementing component composition and state handling avoids the need to pass an endless string of props. It makes it easier for states to be shared and used anywhere in the component hierarchy regardless of their level. This results in cleaner and more manageable components:
- Efficiency: You reduce unnecessary code and simplify the architecture by avoiding passing redundant
props.
- Flexibility: You can define which components go in which section dynamically, improving code reuse.
- Scalability: Makes it easy to add or modify features without complicating the code base.
With these principles in mind, you can start applying these patterns to your projects efficiently, ensuring a solid foundation for building more complex applications in the future. Also, always remember that constant learning and practice strengthens your skills as a developer, so keep practicing!
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