In this tutorial you will step-by-step learn to build a stopwatch app. The final app will include a stop-watch.The final app will look like this
First, you need to download/clone this repository. After that you can proceed resolving the github issues created for each part.
This repository has one folder per part of the project. You need to edit/modify part specific folder only.
Example
If you are solving part1 then you need to resolve all the issues whose title start with part1.