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Cowsaydex

A Node.js script that allows users to generate cowsays and save them to their file system. Indispensible for anyone interested in swarm computing, genetic algorithms, or neuraltechnics.

Getting Started

  1. Clone the repo
  2. cd into the project
  3. npm install

Learning Objectives

  • Processing and using CLI arguments with process.argv
  • Writing to the file system
  • Structuring and using CLI apps
  • Reverse-engineering
  • Using NPM packages (piuccio/cowsay: NPM, GitHub)
    • Reading documentation
    • Building projects around modules

Running the Demo

This repo comes with a fully-functioning (but unreadable!) demo. Play with this demo for a while to make sure you understand how your cowsaydex should behave.

  • node demo.min.js -h

Complete the Exercise

index.js contains starter code that almost entirely works. There are three tasks for you to complete:

  1. Process User Input: Create an array containing all of (and only!) the command line arguments passed by the user
  2. Generate the userConfig object: Convert the array of user arguments (all strings) into a config object describing the new cowsay
  3. Write the cowsay to a file: Using the constant COWSAID_DIRNAME and the config option .file, write the generated cowsay to the user's file system