Advent of Code 2021

TypeScript / nx / node / jest

Solutions

Solutions to each day completed can be found in the solutions branch

Setup

This repo uses nx as a build framework to easily spin up a project for each day using shared libs where it makes sense.

yarn add --global nx
yarn

Generating a new "day"

A workspace generator has been included to easily generate the boilerplate and linting/testing frameworks. For example, to generate an application for "day 1" with a starter function of "merryXmas":

nx workspace-generator day-generator day-1 merryXmas

This will result in a directory structure

apps/
└── day-1/
    ├── src/
    │   ├── assets/
    │   │   └── input.txt
    │   ├── main.ts
    │   ├── merryXmas.spec.ts
    │   └── merryXmas.ts
    ├── .eslintrc.json
    ├── jest.config.js
    ├── project.json
    ├── tsconfig.app.json
    ├── tsconfig.json
    └── tsconfig.spec.json

Where the main.ts, merryXmas.spec.ts and merryXmas.ts files contain boilerplate wiring things together.

Alternatively you can run the generator with prompts:

nx workspace-generator day-generator

// or

yarn generate

Running the Code

Yeah day will live as a distinct app in ./apps. Each of these can be run individually using the nx serve command:

nx serve day-1

Running the Tests

Similar to serving each day, you can also run any tests which exist:

nx test day-1

To run tests for all days, use:

nx run-many --target=test --all

Finally to easily run the tests on only the code which has been affected:

nx affected --target=test