Typescript Tutorial for Beginners [ 2023 Updated ] | Learn Typescript in 2 Hours | Simplilearn
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In this video on TypeScript Tutorial for Beginners, we will understand the various concepts of TypeScript and look at the different components of TypeScript such as Data types, loops, functions, Variables, and classes. This TypeScript Tutorial will give you a good idea and an overview of TypeScript. and also, we will learn some of the advanced Typescript concepts. TypeScript is an object-oriented and strongly typed programming language that is a superset of JavaScript.
Here is the list of topics covered in this video:
00:00 Typescript Tutorial for Beginners
01:30 What Is TypeScript?
02:38 Why need TypeScript
04:29 Features of TypeScript
06:15 Applications of TypeScript
06:40 Advantage of TypeScript
07:18 Setting Development environment
08:19 node js Installtion
10:05 typescript Installation
11:02 Different types of variables in typescript
26:00 Type Assertions
26:26 Type Aliases
27:11 TypeScript Generics
28:49 In operator
29:22 Nullable Types
30:12 Index Types
31:40 Index Signatures
32:35 Mapped Types
33:42 Conditional Types
34:49 Supporting Libraries From Node Modules
35:49 Awaited Type and Promise Improvements
36:40 Tail-Recursion Elimination on Conditional Types
39:32 Recursive Type Aliases
41:20 Beginnwe level Interview Questions
What is TypeScript?
TypeScript is a superset of JavaScript and is an object-oriented programming language. In simple terms, it is just JavaScript with other impressive additional features. All codes in TypeScript ultimately get compiled into JavaScript.
Some key features include -
✅TypeScript supports all JavaScript libraries and frameworks. Angular, a JavaScript framework used to build single-page applications is entirely written in TypeScript.
Advantages of TypeScript Over JavaScript
There are a few improvements with TypeScript that give it an upper hand over JavaScript. Here is the list of advantages of TypeScript over JavaScript.
✅Only at the time of development does TypeScript bring out compilation issues. This reduces the chances of mistakes occurring at runtime.
✅A property of TypeScript is that it is strongly typed or enables static typing. Static typing allows type correctness to be checked at compilation time. In JavaScript, this isn't possible.
✅TypeScript supports IntelliSense which provides active hints as the code is added.
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