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wtf is react-native?

yorkie/react-native — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2015-11-16

JavaScriptAudience · developerComplexity · 3/5DormantSetup · moderate

TL;DR

React Native lets you build genuinely native iOS and Android apps using JavaScript and React, writing one codebase instead of separate native apps for each platform.

Mindmap

mindmap
  root((react-native))
    What it does
      Write once run both
      Compiles to native code
      Access to camera GPS notifications
    Tech stack
      JavaScript
      React
      Objective-C and Java
    Use cases
      Mobile MVPs
      Extend web product to mobile
      Avoid two codebases
    Audience
      Web developers
      Startups
    Extras
      Built-in mobile components
      Community npm modules
      Native module bridging

Code map

Detail Auto

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filefunction / class

Why would anyone build with this?

REASON 1

Build a mobile MVP for iOS and Android from a single JavaScript codebase.

REASON 2

Extend an existing web product to mobile by reusing React knowledge on the team.

REASON 3

Access native phone features like the camera and notifications from JavaScript code.

REASON 4

Write custom native modules in Objective-C or Java when a community package isn't available.

What's in the stack?

JavaScriptReactObjective-CJava

How it stacks up

yorkie/react-native3rd-eden/ircb.ioa15n/a15n
LanguageJavaScriptJavaScriptJavaScript
Last pushed2015-11-162016-11-162019-04-07
MaintenanceDormantDormantDormant
Setup difficultymoderateeasyeasy
Complexity3/52/52/5
Audiencedeveloperdevelopergeneral

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · moderate Time to first run · 30min

Requires Xcode for iOS and Android Studio/SDK for Android to build and run native targets.

No license information is stated in the explanation.

Yoink these prompts

Prompt 1
I know React for the web, explain how React Native components differ from web components like divs and spans.
Prompt 2
Show me how to add a native module in Java that I can call from my React Native JavaScript code.
Prompt 3
Walk me through setting up a new React Native project and running it on both an iOS simulator and an Android emulator.
Prompt 4
How do I access the phone's camera and location in a React Native app, and which built-in APIs handle permissions?

Frequently asked questions

wtf is react-native?

React Native lets you build genuinely native iOS and Android apps using JavaScript and React, writing one codebase instead of separate native apps for each platform.

What language is react-native written in?

Mainly JavaScript. The stack also includes JavaScript, React, Objective-C.

Is react-native actively maintained?

Dormant — no commits in 2+ years (last push 2015-11-16).

What license does react-native use?

No license information is stated in the explanation.

How hard is react-native to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is react-native for?

Mainly developer.

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