functype-user

What problem does it solve?

Traditional imperative or OOP TypeScript can lead to verbose null checks, complex error handling, and mutable state. This Skill helps developers adopt functype's functional patterns to write cleaner, safer, and more predictable code, reducing bugs and improving maintainability.

Core Features & Use Cases

• Pattern Conversion: Transform imperative code (if-else chains, try-catch blocks) into elegant functional constructs like Option, Either, Try, Cond, and Match.
• API Lookup & Examples: Quickly find methods for handling nullable values, managing errors, and working with immutable collections, accelerating development.
• Debugging Assistance: Understand common pitfalls and error messages when working with functype, making troubleshooting faster and easier.
• Use Case: Convert a series of nested if (value !== null) checks into a concise Option(value).flatMap(…).orElse() chain, eliminating boilerplate and reducing potential runtime errors.

Quick Start

Install functype:

npm install functype

Convert null checks to Option:

Before

if (value !== null && value !== undefined) { return value.toUpperCase() } return ""

After

Option(value) .map((v) => v.toUpperCase()) .orElse("")