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TypeScript Academy · Lesson

Common real-world rule sets

Apply popular ESLint + Prettier rule sets used in open-source and company projects to save setup time.

Common real-world rule sets is a free TypeScript Academy lesson on CoddyKit — lesson 3 of 3. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the TypeScript Academy learning path, one of 3 lessons in the course, and your progress syncs across the web and the CoddyKit app.

Intro

Goal: Use community rule sets like airbnb, standard, and google for consistent style without manual tuning.

Airbnb config

Airbnb is a popular strict style, especially for React. It enforces semicolons, spacing, and React best practices.

npm install --save-dev eslint-config-airbnb-typescript eslint-plugin-import eslint-plugin-jsx-a11y eslint-plugin-react eslint-plugin-react-hooks

Standard config

Standard is simpler: no semicolons, minimal config, widely used in Node projects.

npm install --save-dev eslint-config-standard eslint-plugin-import eslint-plugin-n eslint-plugin-promise

Google config

Google config focuses on readability and clarity, used in large codebases.

npm install --save-dev eslint-config-google

Combine configs

You can extend multiple configs: Airbnb + Prettier + TS rules. Ensure parserOptions.project is set for type-aware rules.

// .eslintrc.js example
module.exports = {
  extends: [
    "airbnb-typescript/base",
    "plugin:prettier/recommended"
  ],
  parserOptions: {
    project: "./tsconfig.json"
  }
}

Team alignment

Pick one rule set per project to avoid endless style debates. Align team on it, then focus energy on features.

Question

Quick check: Why use Airbnb or Standard rule sets?

Recap

Recap: Popular configs include Airbnb, Standard, and Google. They reduce setup and keep code consistent across teams.

Frequently asked questions

Is the “Common real-world rule sets” lesson free?

Yes — the full text of “Common real-world rule sets” is free to read here on the web, and the TypeScript Academy course includes 3 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the TypeScript Academy course, upgrade to CoddyKit PRO.

What will I learn in “Common real-world rule sets”?

Apply popular ESLint + Prettier rule sets used in open-source and company projects to save setup time. You practise TypeScript Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.

Do I need any experience to start TypeScript Academy?

No prior experience is required. TypeScript Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 3 of 3, so you can start here or from the beginning and move at your own pace.

How long does the “Common real-world rule sets” lesson take?

Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.

Can I write and run code in this TypeScript Academy lesson?

Yes. Every TypeScript Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.

All lessons in this course

  1. ESLint + @typescript-eslint
  2. Prettier integration & rule conflicts
  3. Common real-world rule sets
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