Typescript-TypeScript for improved coding

Example

In TypeScript, you can define types explicitly: ```ts function add(a: number, b: number): number { return a + b; } ```

Scenario

A team building a large-scale eCommerce platform uses TypeScript to define strict data models for product inventories, user data, and orders. Static typing ensures that data passed between components adheres to these models, reducing runtime errors and increasing confidence in the system.

Example

TypeScript can infer the type based on the value: ```ts let count = 42; // inferred as number ```

Scenario

In a startup environment where speed is essential but maintainability is still important, developers benefit from TypeScript's ability to infer types from values, allowing them to write less boilerplate code while still gaining the advantages of type checking.

Example

You can define custom types using interfaces or type aliases: ```ts interface User { name: string; age: number; } ```

Scenario

In a software project handling customer data, using interfaces ensures that objects passed around follow the same structure. For example, an API that returns a `User` object can ensure that the name and age properties are always correctly typed across the entire codebase.

Example

Generics allow for reusable components that can handle different types: ```ts function identity<T>(arg: T): T { return arg; } ```

Scenario

In a utility library where functions must work with different types (e.g., fetching data from multiple APIs), generics enable developers to write flexible, reusable functions while maintaining type safety.

Example

TypeScript supports ES6 modules for better code organization: ```ts import { User } from './models/User'; ```

Scenario

In a microservices architecture, each service could have its own TypeScript module that encapsulates related functionality. This modular approach enhances maintainability, especially when multiple teams are working on different parts of a system.

Example

Decorators add metadata to classes and methods: ```ts function Log(target: any, key: string) { console.log(`${key} was called`); } class Example { @Log method() {} } ```

Scenario

In a backend system built using TypeScript with a framework like NestJS, decorators are used to define routes, middleware, or other metadata on class methods, streamlining code structure and readability.