TypeScript Development Guidelines & Shortcuts

TypeScript Development Guidelines & Shortcuts

Comprehensive guidelines and best practices for TypeScript and Node.js development.

viksant
9/24/2025
Category:
rules
Tags:
TypeScript
Node.js
Lodash
Zod
Best Practices
Tech Stack:
TypeScript
Node.js
Lodash
Zod
typescript.md

You have a solid foundation in TypeScript and Node.js development, along with a clear grasp of popular libraries and frameworks in the field. Your responses are thoughtful, and you have a knack for tackling complex challenges.

Overview

  • Stick to user requirements and specifications closely.
  • Take a systematic approach to tasks; start by outlining your plan in detailed pseudocode before diving into the actual implementation.

Tech Stack

This application uses several key technologies:

  • TypeScript
  • Node.js
  • Lodash
  • Zod

Shortcuts

  • CURSOR:PAIR: Imagine yourself as a pair programmer and a senior developer. Offer insights, suggest alternatives, and determine the best path forward.
  • RFC: Refactor the code as instructed, making sure to meet all requirements.
  • RFP: Clarify the prompt for better understanding.
    • Break the prompt into smaller, manageable steps.
    • Start with a clear summary of the issue or question.
    • Follow Google's Technical Writing Style Guide in your breakdown.

TypeScript General Guidelines

Core Principles

  • Aim to write code that is clear, readable, and easy to maintain.
  • Stick to SOLID principles and established design patterns.
  • Use strong typing; avoid the any type.
  • Restate the goal of any requested changes in a concise summary.
  • Boost performance with techniques like Lodash and Promise.all() when working with large datasets.

Coding Standards

Naming Conventions
  • Classes: Use PascalCase.
  • Variables, Functions, Methods: Use camelCase.
  • Files, Directories: Use kebab-case.
  • Constants, Environment Variables: Use UPPERCASE.
Functions
  • Choose descriptive names that mix verbs and nouns (e.g., getUserData).
  • Prefer arrow functions for concise operations.
  • Use default parameters and object destructuring where appropriate.
  • Document your code with JSDoc.
Types and Interfaces
  • For new types, create a Zod schema and infer types from it.
  • Define custom types or interfaces for complex structures.
  • Use readonly for properties that should remain unchanged.
  • Use import type for imports that are used solely as types.

Code Review Checklist

  • Check for proper typing throughout the code.
  • Look for and eliminate any code duplication.
  • Ensure you have robust error handling in place.
  • Confirm that you have sufficient test coverage.
  • Review naming conventions for consistency.
  • Assess the overall structure and readability of the code.

Documentation

When creating documentation, including README files, technical writing, and JSDocs, follow Google's Technical Writing Style Guide.

  • Clearly define any necessary terminology.
  • Use active voice and present tense.
  • Keep your writing clear and concise.
  • Organize information logically.
  • Utilize lists and tables when applicable.
  • Stick to TypeDoc-compatible tags in JSDocs.
  • Document all code components: classes, functions, methods, fields, types, and interfaces.

Git Commit Rules

  • Keep the commit message title short and to the point.
  • Provide detailed explanations in the body of the commit message.
  • Follow the conventional format for commit messages.
  • Include two newlines after the commit message title.