TypeScript Introduction

TypeScript is a superset of JavaScript that adds static typing, interfaces, and other powerful features to enhance JavaScript development. It is designed to improve productivity and reduce errors in large-scale applications.

 

Key Features of TypeScript

• Static Typing: Enables developers to define types for variables, functions, and objects, ensuring type safety.
• Optional Typing: Allows gradual adoption, where you can choose which parts of your codebase to type.
• Advanced Features: Supports classes, interfaces, generics, and enums for better code organization.
• Tooling Support: Works seamlessly with modern editors like VS Code, offering autocompletion, error checking, and refactoring.
• Compatibility: Compiles down to plain JavaScript, allowing it to run in any environment where JavaScript is supported.

 

Code Example

Below is an example of a TypeScript code snippet that demonstrates type annotations:

function add(a: number, b: number): number {  
  return a + b;  
}  
  
const result: number = add(5, 10);  
console.log(result); // Output: 15  

 

Summary

TypeScript enhances JavaScript development by providing a robust type system, making it easier to build, scale, and maintain applications. It combines the flexibility of JavaScript with the power of static typing.