React Native Official Documentation

Meta's own documentation is where every React Native developer ends up eventually, usually arriving sideways from a search result rather than through the front door. The page our link points at is really a map rather than a lesson — it tells you what JavaScript you need before you start, sends you to MDN if you don't have it, and then admits that the actual getting-started instructions have moved to their own Environment Setup section.

What sits underneath that map is genuinely large. The sidebar runs from The Basics through environment setup, workflow, styling, debugging, testing, performance, the JavaScript runtime, Codegen and native development, with separate Android and iOS guides and a Legacy Architecture section still parked at the bottom for apps that haven't migrated yet.

What it covers

• Core Components — View, Text, Image, TextInput, ScrollView and the list views, each with a runnable example
• React fundamentals, in a short refresher aimed at people who know JavaScript but not React
• Platform-specific code, and the Platform module
• Debugging, testing and performance, including the parts nobody reads until something is on fire
• Native development and Codegen, for when JavaScript stops being enough

Where the Snack examples mislead you

Every code sample runs live in the browser through Snack Player, which Expo built. It's a lovely way to poke at a FlatList without installing anything. It also quietly skips the part of React Native that actually hurts — Xcode versions, Gradle, CocoaPods, simulator setup. You can finish a whole afternoon of docs feeling fluent and then lose the next afternoon to a build error the docs never mentioned.

Who it's for

You'd reach for this when you already know React on the web and need to know what the mobile equivalent of a div is. It's also the right place to check behaviour you half-remember. Skip it as a first teacher if you're new to programming entirely — the docs assume JavaScript and hand you off to someone else's tutorial the moment you wobble. Skip it too if you're building with Expo, where the Expo docs are closer to what you'll actually type.

Our take

Accurate, current, and structured for lookup rather than learning — which is the honest complaint. There's no ordered path through it, so beginners wander. The Legacy Architecture material sitting alongside the new one is a real trap: search engines still surface old pages, and the two sets of instructions contradict each other in ways that aren't obvious until your app won't compile. Read it as a reference, learn the shape of the framework somewhere else first.