typescript-type-safety

What problem does it solve?

This Skill empowers developers to write highly type-safe TypeScript code, leveraging advanced features to catch errors at compile time rather than runtime. It eliminates the use of any and promotes robust type-checking for more reliable applications.

Core Features & Use Cases

• Type Guards: Implements custom type predicates to narrow unknown types safely, ensuring type-safe access to properties.
• Branded Types: Creates distinct types from primitives (e.g., UserId, Email) to prevent accidental assignment and enhance domain modeling.
• Discriminated Unions: Structures polymorphic data types for exhaustive type-checking with switch statements.
• Use Case: "Create a branded type for OrderId to ensure that only valid order IDs are used in functions, preventing accidental string mismatches."

Quick Start

Implement a type guard to safely narrow an unknown value to a User interface.