react-native

Build native mobile apps using React

TLDR

Create new project

$ npx react-native init [ProjectName]

Start Metro bundler

$ npx react-native start

Run on Android

$ npx react-native run-android

Run on iOS

$ npx react-native run-ios

Run on specific device

$ npx react-native run-ios --device "[iPhone 15]"

Clean build cache

$ npx react-native start --reset-cache

Link native dependencies

$ npx react-native link

Show doctor diagnostics

$ npx react-native doctor

SYNOPSIS

npx react-native command [options]

react-native is the command-line interface for React Native, a framework that enables building native iOS and Android mobile applications using JavaScript and React. It manages the full development lifecycle from project creation through building, running, and debugging apps on simulators, emulators, and physical devices.The CLI starts the Metro bundler, which serves JavaScript bundles to running apps and enables hot reloading for rapid development iteration. Platform-specific commands (run-android, run-ios) compile native code and deploy to target devices. The doctor command verifies that the development environment is correctly configured, checking for Xcode, Android SDK, Node.js, and required dependencies.

PARAMETERS

init NAME

Create new project.

start

Start Metro bundler.

run-android

Build and run on Android.

run-ios

Build and run on iOS.

doctor

Check development environment.

link

Link native dependencies.

upgrade

Upgrade React Native.

--device NAME

Target device.

--reset-cache

Clear bundler cache.

CAVEATS

iOS development requires macOS. Android needs SDK and emulator. Native builds can be slow.

HISTORY

React Native was created by Facebook and released in 2015. It enables building mobile apps using React and JavaScript, compiling to native code.