JavaScript vs TypeScript

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What is JavaScript?

Netscape developed it in 1995.
Javascript (JS) is a scripting languages, primarily used on the Web.
It is a high-level, interpreted language - that can easily be added with languages like HTML.
JavaScript is an interpreted language. So it doesn't need to be compiled the JavaScript code. It run directly on browser.
JavaScript is an object-based scripting programming language. It is lightweight which consume minimal memory resources when its code or an application is running and cross-platform.
EcmaScript2022 (ES13) is latest JavaScript version going to release in 2022 year.
JavaScript can be use with developing following applications: Websites, Web Applications, Server Applications, Games, Art, Mobile Apps

What is TypeScript?

Anders Hejlsberg developed it in 2012 at Microsoft. Anders Hejlsberg also designed C# at Microsoft.
TypeScript is a superset of JavaScript.
Object-Oriented language - It is object-oriented language with classes, interfaces and statically typed programming like C# or Java.
You will need a compiler to compile the code and generate the code in the JavaScript file(js file).
TypeScript is the ES6 version of JavaScript with some additional features with classes, interfaces, inheritance, generics etc .
A TypeScript code is written in a file which have.ts extension.
TypeScript supports JavaScript libraries - It allows the developers to use existing JavaScript code with the TypeScript. So it support all of the JavaScript frameworks, tools, and other libraries easily.
JavaScript is TypeScript - The code written in JavaScript with valid .js extension can be converted to TypeScript by changing the extension from .js to .ts and compiled with other TypeScript files.
TypeScript is portable - Execute on any browsers, devices, or any operating systems.
DOM Manipulation - To manipulate the DOM for adding or removing elements similar to JavaScript.

Difference between the JavaScript & TypeScript

SNo.	JavaScript	TypeScript
1	It is developed by Netscape in 1995.	It is developed by Anders Hejlsberg in 2012.
2	JavaScript source file is in .js extension.	TyTypeScript source file is in .ts extension.
3	It is just a scripting language.	It supports object-oriented programming concept like classes, interfaces, inheritance, generics, etc.
4	It doesn't support strongly typed or static typing.	It supports strongly typed or static typing feature.
5	It doesn't support optional parameters.	It supports optional parameters.
6	It is interpreted language that's why it highlighted the errors at runtime.	ItIt compiles the code and highlighted errors during the development time at compile time.
7	JavaScript doesn't support generics.	JavaScript supports generics.

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