Now, in this tutorial, I am going to start typescript tutorials step by step. You will learn many things about typescript in this series. First of all, in this tutorial, you will learn Why was typescript presented? What is typescript ? What are the basic features of typescript ? Why we use typescript ?
Why typescript Introduced?
In 1995, Javascript was introduced as a language for the client side. As Javascript code grows, it’s very difficult to maintain and reuse its code. Moreover, there are many failures like features of Object Orientation, compile time error checks and strong type checking prevents Javascript from succeeding at the enterprise level as a full-fledged server-side technology. Then “Type Script” was presented to fill this gap.
What is Typescript?
The typescript was designed by “Anders Hejlsberg” at Microsoft. The type script is an extension of Javascript or a superset of Javascript. It allows us to write code in strongly typed and object oriented design. This will help us to make our code faster. In simply we can say that “Type Script is Javascript and plus some additional features”.
Type Script has three components like Language, the Type Script compiler, and the Type Script Language Service
What are the Features of typescript?
There are some following some features of type script .
- TypeScript is Portable
Type script is a portable across all the browsers, devices, and all the operating systems. It can run on all the environment that Javascript runs on. It doesn’t need a dedicated Virtual Machine or any specific runtime environment to execute. - Library Support
TypeScript supports all other JS libraries. Compiled Type Script can be consumed from any Javascript code. - Open Source
TypeScript is an open source. You can use Type Script for any environment - Type_Script is just Javascript
Type Script is all about Javascript. It adopts the basic building blocks of Javascript program. So, simply we can say that you only need to know javascript to use Type Script.
Why we use TypeScript?
There are some following some reasons that show why we use Type_Script.
- Support Object Oriented
Type_Script supports Object Oriented Programming concepts like Classes, Interfaces, Inheritance and etc. - Strong Static Typing
TypeScript is a strongly typed but the other hand javascript is not strongly typed. TypeScript provides optional static typing and the type inference system through Type Script Language Service (TLS). The type of a variable(Declared with no variable) may be inferred by the TLS based on its value. - Error Checking
Type Script provides error-checking features. It will compile the code and then generate compilation errors. If it finds some sort of errors, then it helps to highlight errors before the script run.