This is one of the most frequently asked interview questions in the interview. As a developer must be aware of the key differences, let's discuss them briefly about it.
What is JavaScript?
JavaScript is a scripting programming language used to build client-side and server-side applications. It provides a runtime element management and manages the DOM dynamically. And it is a prototype-based language.
Key features of JavaScript
- Lightweight scripting language.
- Dynamic typing
- Prototype based.
- Strong Client-side validation.
- More control in the browser.
What is the TypeScript?
TypeScript is a compiled object-oriented programming language built on top of JavaScript. It is a superset of JavaScript.
Key features of TypeScript
- Object-oriented programming language.
- Strongly typed programming language
- TypeScript supports JavaScript libraries.
- It is portable.
| Feature | JavaScript | TypeScript |
| Typing | Dynamically typed | Statically typed |
| Debugging | Stronger typing can help Identify errors | Runtime debugging |
| Compilation error | Detect errors in the compile time | Detect errors in runtime |
| Support | Client-side and server-side | Client-side and server-side |
| Speed | JavaScript loaded very quickly | Compared with JavaScript, it is a bit slow |
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