Vue 3's reactivity system automatically keeps your UI in sync with data changes using JavaScript Proxies. The guide covers the core reactive APIs: `ref()` for primitives, `reactive()` for objects, `computed()` for derived values, and `watch()`/`watchEffect()` for side effects. It explains how dependency tracking works under the
Table of contents
What Reactivity Means (and Why It’s Awesome)The Core APIs You’ll UseHow Vue’s Reactivity Works Under the HoodPractical Example—A Reactive Todo ListGotchas and Edge CasesWrapping Up1 Comment
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