TypeScript by Example

In the menu on your left you can find the list of all TypeScript examples.

On this page we will talk about some interesting facts about TypeScript.

What is TypeScript?

TypeScript is a superset of JavaScript that adds static typing and other features to the language. It’s designed to make large-scale JavaScript applications easier to develop and maintain.  

Key characteristics of TypeScript

• Static Typing: This is the core feature of TypeScript. It allows you to explicitly define the types of variables, function parameters, and return values, which helps catch errors during development, improves code readability, and provides better tooling support (like code completion and refactoring).  

• Transpiles to JavaScript: TypeScript code is not directly executable by browsers or Node.js. It’s compiled (or “transpiled”) into plain JavaScript that can run anywhere JavaScript runs.  

• Optional Typing: You can choose to use types as much or as little as you want. TypeScript’s type inference system can often deduce types automatically, so you don’t have to write them everywhere.  

• Enhanced Tooling: TypeScript provides excellent support in many code editors, offering features like real-time error checking, intelligent code completion, and powerful refactoring tools.  

• Improved Code Maintainability: With type safety and better tooling, TypeScript makes it easier to understand, modify, and refactor large codebases, reducing the likelihood of introducing bugs.

• Compatibility: TypeScript is fully compatible with existing JavaScript code. You can gradually introduce TypeScript into your projects or even use it alongside plain JavaScript.  

In summary, TypeScript enhances JavaScript by adding static typing, which leads to improved code quality, developer productivity, and maintainability, especially for large-scale projects.