Blackjack

This repository houses the code for the blackjack game at https://jonblackjack.netlify.app.

Table of Contents

• Running the project
• Testing
• Code Formatting
• Compilation

Running the project

To run the project, we'll need to install a couple of dependencies.

Installing dependencies

This project depends on Node.js and Yarn, so we'll need to get those set up.

Installing NVM

To manage Node.js, we'll want to use NVM. NVM is a Node.js version manager and allows you to easily install, switch between and uninstall different Node versions. To install NVM, run:

$ curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.37.0/install.sh | bash

This script will clone the NVM repository to ~/.nvm and add the following to your profile (~/.bashrc or ~/.bash_profile):

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

To verify that nvm has been installed, run:

$ command -v nvm

which should output nvm.

If you run the command nvm you should see help output. If you don't see anything, open a new terminal or run the following command:

$ source ~/.bash_profile

Installing Node.js

After NVM has been installed, we'll want to install Node.js. Run the following:

$ nvm install v14.15.1

After running the above command, you should be able to verify that Node.js and NPM were successfully installed:

$ node -v
v14.15.1
$ npm -v
6.14.8

Installing Yarn

Yarn is an alternative to NPM. This project takes advantage of Yarn's PnP and Zero Installs feature.

We don't recommend installing Yarn via Homebrew as it will also install Node.js if you don't yet have it and you may run into conflicts with what we install via NVM.

Install Yarn using the following command:

$ npm -g install yarn@1.22.10      // <= The version should match the version of yarn in the package.json file.

To verify the Yarn installation worked as expected, run the following commands:

$ which yarn
/Users/{yourUser}/.nvm/versions/node/v14.15.1/bin/yarn
$ yarn -v
1.22.10

Start the Project

After you've installed the dependencies, you can start running the project. We use webpack-dev-server to start a development server. Once you've run the project, you can connect to the development server at http://localhost:9005.

To run the project, run the following command:

$ yarn start

Testing

This project uses Jest and React Testing Library for its tests. To get that started, open a new terminal window/tab and run the following command:

$ yarn test:watch

Compilation

This project uses TypeScript to compile its code.

To check for compilation errors from the command line, run:

$ yarn compile

Code Formatting

This project uses Prettier (an opinionated code formatter) for automatic code formatting and ESLint for lint checking. The formatting and linting happen as a Git precommit hook for any files that you currently have staged for commit. Prettier will modify your code files and re-add them to the Git commit. ESLint will likewise try to fix any issues it can and adds those changes as well.