TypeScript Express Tutorial | TypeScript Setup With Express | TypeScript Tutorial | Simplilearn
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In this video on TypeScript Express, we will see an overview of how to use TypeScript with Express.js. At last, we have a hands-on demo wherein we will install all the necessary packages and modules to get started with TypeScript Express. Express.js is a Node.js web application framework that is free and open-source, whereas TypeScript is a superset of JavaScript.
Here is the list of topics covered in this video:
0:00 Introduction
01:01 What Is TypeScript?
02:11 What Is Express
03:08 Features of Express
04:20 Advantages of Using TypeScript with Express
05:32 Demo
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What Is Express.js?
Express.js is a Node.js web application framework that is free and open source. It is used to quickly and easily design and create web apps. To construct our applications, Express provides a simple interface. It gives us the resources we need to create our app. It's adaptable because there are a lot of modules on npm that can be directly integrated into Express.
Some key features include the following -
✅TypeScript supports all JavaScript libraries and frameworks. Angular, a JavaScript framework used to build single-page applications, is entirely written in TypeScript.
✅With an increase in code complexity, JavaScript had to fulfill the requirements of OOP; hence that led to the introduction of TypeScript.
✅TypeScript helps with quicker code development, thus improving performance.
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 is nothing but JavaScript and some additional features i.e. ES6 features. Some of these features are -
Interfaces
Generics
Namespaces
Null checking
Access Modifiers
✅TypeScript supports IntelliSense, which provides active hints as the code is added.
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