🔧 TypeScript Functions In TypeScript Functions are similar to JavaScript functions, but with type safety. You can define types for parameters, return values, and even the function itself. 1️⃣ Basic Function function add(a: number,...
🔀 TypeScript Union Types In TypeScript Union Types let a variable, parameter, or return value be one of several types. They are written using the pipe symbol |. 📌 Think of union as OR...
🧩 TypeScript Interfaces In TypeScript Interfaces is used to define the structure (shape) of an object. It tells TypeScript what properties and methods an object must have. Interfaces are especially powerful for object-oriented design, APIs,...
🏷️ TypeScript Type Aliases Type Aliases in TypeScript allow you to give a name to a type. They make your code cleaner, reusable, and easier to understand, especially for complex types. 1️⃣ Basic Type...
🧮 TypeScript Enums Enums in TypeScript let you define a set of named constants. They make code more readable, less error-prone, and easier to maintain. 1️⃣ Numeric Enums (Default) By default, enum members start...
🧱 TypeScript Object Types In TypeScript, Object Types define the structure (shape) of an object—what properties it has and what types those properties must be. 1️⃣ Basic Object Type let user: { name: string;...
🔗 TypeScript Tuples In TypeScript Tuples is a special type of array where: ✅ Number of elements is fixed ✅ Type of each element is predefined ❌ Order cannot be changed Tuples are useful when...
📦 TypeScript Arrays In TypeScript arrays are used to store multiple values of the same type. TypeScript adds type safety to arrays so you can’t accidentally insert the wrong type. 1️⃣ Declaring Arrays Method 1:...
⭐ TypeScript Special Types In TypeScript Special Types handle edge cases—situations where normal types are not enough. They help you write safer, clearer, and more predictable code. 1️⃣ any Disables type checking (❌ not...
🧠 TypeScript Explicit Types and Type Inference TypeScript lets you define types in two powerful ways: Explicit Types – you clearly tell TypeScript the type Type Inference – TypeScript automatically figures out the type...