Diving Into Vue 3 - The Reactivity API

In the fourth part of her "Diving Into Vue 3" series, Sandra Rodgers discusses how to use Reactivity APIs such as ref and reactive in Vue.js. She explains that reactivity refers to a feature where changes to state automatically update what is displayed on screen. The new Reactivity API in Vue 3 uses the JavaScript Proxy API instead of Object.defineProperty, which was used in Vue 2. Rodgers also introduces related helpers such as toRef, toRefs, and isRef. She emphasizes that understanding both ref and reactive is crucial for using Vue 3 effectively.