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React and React Native

This is the code repository for React and React Native, published by Packt. It contains all the supporting project files necessary to work through the book from start to finish.

About the Book

React and React Native allow you to build cross-platform desktop and mobile applications using Facebook’s innovative UI libraries. Combined with the Flux data architecture and Relay, you can now create powerful and feature-complete applications from just one code base!

Getting Started

In this section, I'll walk you through the process of cloning this repository, installing dependencies, and how to launch the examples.

Cloning The Repository

To clone this repository:

git clone https://github.com/PacktPublishing/React-and-React-Native.git

That's it. I'll likely be pushing fixes to this repository on a regular basis, so it's a good idea to run the examples from it. But first, you need to make sure all required dependencies are installed.

Installing Dependencies

To install the dependencies used with the code examples, open up a terminal if you haven't already, and change into the repo directory:

cd React-and-React-Native

Now you can use npm to install all the packages that we need:

npm install

There are quite a few dependencies to install, so this command might run for a minute. These are the local dependencies, meaning that they're specific to the code examples in this Git repository. You can take a look at the package.json file to get an idea of what this project depends on. Or, you can simply list them in the console by running:

npm ls --depth=0

Npm also has the notion of global depnedencies. These are npm packages that are available to any project in on the system. We need to install the following global dependencies in order to run the example code:

npm install -g webpack-dev-server webpack babel babel-cli

This will make the webpack and the webpack-dev-server packages available to any projects on your system. More importantly, this will install the webpack-dev-server command needed to run the examples.

Running Examples

First, you need to change into the directory of the example that you'd like to run:

cd Chapter02/builtin-html-tags

Then, you're ready to run the Webpack development server:

webpack-dev-server --hot

This starts the development web server. The console output will tell you where the server is listening for requests:

Project is running at http://localhost:8081/

You can visit this page to interact with the example. The --hot option isn't always necessary. In fact, it's really only useful if you plan on modifying the code examples (recommended!) and you want to see the results in the browser immediately.

If you find a server.js file in the example directory, this should be executed instead of the webpack-dev-server command:

babel-node server.js

Then, you can visit the address displayed in the console, in your browser, just like you would with webpack-dev-server.

Building React Native Projects

Each React Native example is it's own project. There are a few steps that should be followed, in order to build and run these projects. First of all, make sure you have the react-native-cli package installed:

npm install react-native-cli -g

Install Dependencies


Just like any regular React web projects:

cd path/to/code
npm install

Install iOS and Android Build Files

When you start a React Native project, there're a number of source files generated. They're not included in this code bundle because it would be way too big. To generate them, run:

react-native upgrade

This will ask you about overwriting a number of files. You can answer yes to all of them.

Link dependencies

Some examples have dependencies that need to be linked. It's generally a good idea to link projects even if they don't have any dependencies, because you never know when new dependencies will creep in:

react-native link

Run the project

From within the given code directory, run one of the following:

react-native run-ios
react-native run-android

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