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CarbonCounterRepo!

Node Modules

Before doing anything, you need to install necessary node_modules, which are javascript libraries. To do this, we use a package manager called npm. To use npm, download it here, navigate into the ClimateChangeApp directory and run npm install.

Expo setup

Expo is a tool we use to generate builds for our apps. This repo already includes the files needed for an expo app, so building the application should be relatively simple.

  • Download the Expo Development Client (can use mobile or desktop app), as well as the Expo Command Line Environment (Expo CLI). Instructions for both here
  • Making sure you have already run npm install, run expo start and your expo app should begin the build process.
  • To view your app, open the Expo Development Client App and follow the instructions.

To create an expo app from scratch, see this guide.

Looking at the Code

  1. Begin first by going through App.js and the files in the Pages/ folder. This should give you a general idea of the project structure.
  2. Each of these pages represents a screen, and utilizes "child components". After you understand how the page screens work, take a look at some of the components, which hold blocks of reusable code for things like buttons, sliders, etc.