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Documenting Your Angular Library

  • Welcome to the wonderful world of library documentation.
  • In this guide, we show you how to create documentation for your Angular library that makes both consumers and fellow engineers want to give you a virtual high-five.


So, you've created an amazing Angular library. Kudos! But, before you pop the champagne, remember that no one likes a mystery. Documentation is the key to making your library accessible and user-friendly.

Proper documentation serves two main purposes:

  1. Consumer-Friendly: It helps users understand how to use your library to achieve their goals. Like a good manual, it should answer questions like "How do I get started?" and "What can I do with this?"

  2. Engineer-Friendly: For those curious minds who want to dive into the nitty-gritty, your documentation should explain how your library works under the hood. Don't be selfish; share the knowledge!

Different Parts of Your Library Documentation

Here's a breakdown of what your library documentation should include:

1. Getting Started

  • This section should be as simple as making a sandwich.
  • Provide step-by-step instructions on how to install your library, including any prerequisites or dependencies.

2. Basic Usage

  • Show users how to perform common tasks with your library.
  • Imagine explaining to a toddler.
  • Use clear, concise examples, and don't skip the "why" part.

3. Advanced Usage

  • For those who want to take the library to the next level, give them advanced tips and tricks.
  • This is like adding sprinkles on top of an ice cream cone; it's the extra touch that makes your library even better.

4. Configuration

  • Explain how to configure your library, if applicable.
  • Whether it's via configuration files, environment variables, or code, give users the a clear guide on how to configure your library.

5. API Reference - "Under the Hood"

  • Document all the classes, functions, and components in your library.
  • Include their parameters, return values, and examples. Don't leave them guessing!

6. Troubleshooting and FAQs

  • Proactively address common issues or questions. It's like being the IT support hero who saves the day.

7. Contributing Guide

  • For those who want to be your sidekick, give them a guide on how they can contribute to your library. Help them help you.

8. Changelog

  • Keep a record of changes in your library, whether it's bug fixes, new features, or improvements.
  • Make it easier to spot the difference between the "before" and "after."

Writing for Consumers

  • When writing for consumers, keep it simple, like explaining tech to your grandma.
  • Use clear language, examples, and real-world scenarios. Don't assume prior knowledge. Remember, not everyone is a coding ninja.

Writing for Engineers

  • For the tech-savvy folks who want to tinker under the hood, provide technical details, code comments, and architectural overviews.
  • Consider including diagrams, flowcharts, and explanations of the library's internal workings. This is like providing a treasure map to fellow adventurers.


  • In the world of software development, a library without proper documentation is like a cake without icing – it's just not as sweet.
  • Good documentation can make your library shine, attract more users, and even turn them into contributors.