What is the reactivity system in Vue 2?

What is the reactivity system in Vue 2?

The reactivity system in Vue 2 allows the framework to automatically update the DOM when the underlying data changes.

How does Vue track changes in data?

Vue uses getters and setters to observe changes in data properties. When a property is accessed, it tracks the dependency, and when it changes, it triggers updates.

Can you explain how to create a reactive property?

You can create a reactive property using Vue's data option in a component. For example, data() { return { myProperty: 'value' }; } makes myProperty reactive.

What are some common pitfalls with Vue's reactivity?

Common pitfalls include directly mutating an array or object without using Vue's methods, which can lead to missed updates.