How does reactivity work in different JavaScript frameworks?

How does reactivity work in different JavaScript frameworks?

Reactivity in JavaScript frameworks allows the UI to automatically update when the underlying data changes. Frameworks like Vue, React, and Angular implement this concept differently.

Can you explain how Vue handles reactivity?

Vue uses a reactive data model where it tracks dependencies and automatically re-renders components when data changes. It utilizes getters and setters to observe changes.

What about React? How is its reactivity different?

React uses a virtual DOM and a reconciliation process. It updates the UI by re-rendering components based on state changes, which can be more efficient than direct DOM manipulation.

And how does Angular approach reactivity?

Angular employs a two-way data binding approach, where changes in the model automatically update the view and vice versa, using a digest cycle to check for changes.

Which framework do you think has the best reactivity system?

It depends on the use case! Vue is great for simplicity, React for performance, and Angular for comprehensive solutions. Each has its strengths.