Typescript-advanced JavaScript superset

Example

In TypeScript, you can define the type of a variable, function parameter, or return type. For example, `let age: number = 30;` ensures that `age` can only be a number.

Scenario

Static typing is crucial in scenarios where you need to manage a large codebase, ensuring that functions receive and return the expected data types. This reduces bugs and makes the code more understandable, as the types act as a form of documentation.

Example

Interfaces in TypeScript allow you to define the structure of an object. For example, `interface Person { name: string; age: number; }`.

Scenario

Using interfaces is beneficial in situations where multiple functions or classes share common structures. For instance, in a web application handling user data, interfaces ensure that all user-related functions and objects adhere to the same structure.

Example

TypeScript supports advanced features like Union types (`let value: string | number;`), Intersection types, and Generics (`function identity<T>(arg: T): T { return arg; }`).

Scenario

These advanced types are useful in complex scenarios, such as when creating reusable components or functions that can handle different data types. For example, generics are heavily used in libraries and frameworks to provide type-safe operations.