Category: TypeScript

Part 1: The Basics – Function Types and Signatures Function Parameter Types Every parameter can (and should!) have a type: typescript

What TypeScript does here: ✅ Ensures you call greet with exactly 2 arguments ✅...

TypeScript – Union Types. If TypeScript is a superhero, union types are its superpower. They’re what make TypeScript expressive, flexible, and incredibly safe all at once. Let me start with a simple analogy: Imagine you’re...

TypeScript: Type Aliases vs Interfaces. This is like comparing two nearly identical tools that have subtle but important differences. Think of it like choosing between a Swiss Army knife and a specialized tool – sometimes...

TypeScript Enums. Some developers love them, some avoid them, but understanding them is crucial for writing effective TypeScript. Think of enums as creating your own vocabulary – instead of using magic numbers or random...

Part 1: The Basics – What Is an Object Type? An object type describes the shape of a JavaScript object – what properties it has and what types those properties are. The Simplest Object Type typescript...

Part 1: What Exactly IS a Tuple? A tuple is an array with a fixed number of elements, where each element has a specific type at a specific position. The order matters, the count matters, and...

Part 1: The Basics – Two Ways to Write Arrays TypeScript gives us two syntaxes for array types. They’re exactly the same in function, but different in style. Let me show you both: Syntax...

TypeScript special types are like the “special forces” of the type system – they handle the edge cases, the uncertainties, and the unique situations that regular types just can’t handle elegantly. Think of regular...

TypeScript’s explicit types and inference. This is honestly one of the most fundamental concepts to understand, and once it clicks, TypeScript becomes your best friend instead of that annoying error-message machine. Let me explain...

📘 TypeScript Simple Types (Explained Like a Friendly Teacher) When we say “Simple Types” in TypeScript, we mean the basic data types that store simple values like numbers, text, true/false, etc. Remember: 👉 TypeScript...