What is TypeScript?

Vlad O.

Updated:

Yet, as applications grew in complexity, developers felt the need for a tool that could address its shortcomings, leading to the birth of TypeScript. Let’s dive deep into the realm of TypeScript and discover its potential.

TypeScript, developed by Microsoft, is a statically typed superset of JavaScript. This means everything you do in JavaScript can be achieved in TypeScript and then some more. Its main attraction? Static typing and object-oriented programming features.

TypeScript vs. JavaScript: The Main Differences

While TypeScript retains the essence of JavaScript, it brings to the table several enhancements that cater to large-scale application development.

1. Static Typing

Unlike JavaScript, TypeScript supports static typing, allowing developers to specify the type of variables, function parameters, and return types.

let jottupName: string = 'Jottup';
let jottupAge: number = 25;
    

2. Interfaces

Interfaces in TypeScript facilitate the definition of object types, ensuring adherence to specific structures.

interface JottupPerson {
    name: string;
    age: number;
}
    

3. Classes and Object-Oriented Features

TypeScript introduces classes, inheritance, and other OOP principles, making the codebase structured and maintainable.

Why Developers Love TypeScript

TypeScript isn’t just about adding types. It offers a myriad of benefits tailored for modern development:

  • Enhanced code quality and predictability.
  • Facilitates large-scale project management.
  • Powerful IDE support with advanced autocompletion and refactoring.
  • Better collaboration among developers.
  • Compatibility with ES6 and beyond.

Setting Up and Using TypeScript

Getting started with TypeScript is a breeze. Once you’ve installed it via npm:

npm install -g typescript
    

You can transpile your `.ts` files into `.js` using the `tsc` command.

tsc jottupFile.ts
    

In Conclusion

TypeScript emerges as a formidable contender for modern web development, addressing the pain points of JavaScript while preserving its core. For developers yearning for a seamless, type-safe, and scalable development experience, TypeScript is the way forward.

Posted in Typescript tagged as fundamental ts