React Native – Setup
There are a couple of things you need to install to set up the environment for React Native.We will use OSX as our building platform.   Install NodeJS and NPM  on UNIX/Linux/Mac OS X, and SunOS :   $ cd /tmp  $ wget http://nodejs.org/dist/v6.3.1/node-v6.3.1-linux-x64.tar.gz  $ tar xvfz node-v6.3.1-linux-x64.tar.gz  $ mkdir -p /usr/local/nodejs  $ mv node-v6.3.1-linux-x64/* /usr/local/nodejs    Add /usr/local/nodejs/bin to the PATH environment variable.    Linux : export PATH=$PATH:/usr/local/nodejs/bin   Mac   : export PATH=$PATH:/usr/local/nodejs/bin    Step 1 – Install Homebrew  Open your terminal and run the following code to install Homebrew −   /usr/bin/ruby -e "$(curl -fsSL  https://raw.githubusercontent.com/Homebrew/install/master/install)"    Step 2 – Install Watchman  Run the following code to install Watchman.   brew install watchman    Step 3 – Install React Native  Now, run the following code to install React Native.   npm install -g react-native-cli   Step 4....