You can think of TypeScript as JavaScript on a larger application scale. Both a collection of tools and a language are part of TypeScript, which means that TypeScript offers the same functionality as JavaScript, plus a few more.

JavaScript and is more type-safe.

It's free and open source, and Microsoft is responsible for its development, which also developed Angular from version 2 through Angular 12 and Google (the latest version). It's the recognized language for creating Angular2+ apps.

Understanding TypeScript

TypeScript is an object-oriented, tightly typed, compiled programming language built on JavaScript. To provide you with better tooling at any size, it's a superset of the JavaScript language. "JavaScript with syntax for types," is how TypeScript describes itself. It's essentially JavaScript with some extra capabilities.

Features of TypeScript

As a JavaScript add-on, TypeScript enhances productivity for programmers. TypeScript is presented and summed up with JavaScript. Typescript borrows JavaScript's basic components to create its program. So, you can use a simple JavaScript code in any context of JavaScript since every bit of TypeScript code gets converted to its JavaScript equivalent before you run it.

TypeScript facilitates easy code readability. Interfaces and classes are the foundations of TypeScript code. Code that is well-organized with interfaces is much simpler to update and troubleshoot.

The code written in TypeScript is potable. You can use TypeScript in any web browser, desktop OS or device. Any platform that supports JavaScript should be able to use it. Also, you can execute TypeScript in any virtual machine or operating system.

Unions are a straightforward component of TypeScript. They make it simple to merge separate concepts as one. One technique to compose types is through the use of unions and intersections.

The advantages of TypeScript

The compilation is necessary for the programming language JavaScript. Therefore, you must test its validity in practice. In the worst-case scenario, you put in the time and effort to write all the scripts to receive a blank screen, which means a lot of time spent checking the code for bugs. There is a built-in error checker in the TypeScript transpiler. Before carrying out the program's instructions, it helps to highlight any flaws.

Typescript generates a code if there are any syntax errors.

  • JavaScript does not use strong static typing. Via the TLS (TypeScript Language Service), TypeScript offers an alternative static typing and type inference system. The TLS may deduce the kind of variable declared without a type depending on the value.
  • Typescript supports definitions for already-existing JavaScript libraries. Also, Typescript Definition files(with the.d.ts extension define External JavaScript libraries. Therefore, you can include these libraries in TypeScript code.
  • Classes, inheritance, interfaces, and other Object Oriented
  • TypeScript supports Programming principles.

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TypeScript Growth - Source: Google Trends

How to Start with TypeScript

The ideal strategy for starting to use TypeScript is progressive adoption. It entails gradually adding types to the JavaScript to enhance the editor support and codebase.

Using TSC is the most typical method of using TypeScript:

  • Write the TypeScript
  • The TypeScript code should then be converted into normal JavaScript code using TSC.
  • Last but not least, install the JavaScript code in any setting that supports it.