What are the performance differences between Angular and React?

What are the performance differences between Angular and React?

Angular and React have different performance characteristics. Angular is a full-fledged framework, which can lead to more overhead, while React is a library focused on building UI components, often resulting in faster rendering.

Can you explain how change detection works in Angular?

In Angular, change detection is done using zones and a digest cycle. It checks for changes in the model and updates the view accordingly, which can sometimes lead to performance issues if not managed properly.

How does React handle updates and rendering?

React uses a virtual DOM to optimize updates. When the state changes, it creates a virtual representation of the UI, compares it with the previous version, and only updates the parts that changed, making it more efficient.

Which one is better for large applications?

It depends on the specific needs of the application. Angular provides a more structured approach with built-in features, while React offers flexibility and can be more performant in certain scenarios.

What tools can I use to measure performance in both frameworks?

You can use tools like Lighthouse for web performance audits, React DevTools for React, and Augury for Angular to analyze performance.