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TypeScript Beginner

Learn the basics of the TypeScript programming language
Preview the first lesson free — get full access to all 31 lessons.
Course: On-Demand
Beginner Provider Mark Nair  7 chapters ·  31 Lessons ·  2h 6m  in Arabic, German, English, Spanish, French, Portuguese, Chinese 

Course Description

In this TypeScript beginner course you will learn the basics of TypeScript, a programming language that is strongly typed and built upon JavaScript. Learning TypeScript will let you build large-scale and complex applications that need to be strong-typed, object-oriented, and compiled.

TypeScript is a programming language that extends the functionality of JavaScript by introducing strong typing, object-oriented programming concepts, and compilation. TypeScript is designed to provide improved tooling at any scale, and it is considered an upgraded version of JavaScript that offers several additional benefits.

One of TypeScript's primary advantages is its optional type system, which enables early error detection and improves code reliability. By introducing static type checking during development, TypeScript helps identify potential runtime errors before they occur, making it easier to build robust and maintainable software.

In contrast to JavaScript, which is a loosely typed language, TypeScript's strong typing system enables developers to write more efficient code by allowing them to better understand what type of data is being passed between functions, parameters, and variables. Additionally, TypeScript is portable and can run on any device or platform that supports JavaScript, making it an ideal choice for developers who want to create software that works on various devices, including mobile and desktop.

What You'll Learn

  • Learn when and how to use TypeScript, a strongly typed language built upon JavaScript
  • Implement primitive and complex data types, including strings, booleans, numbers, and the any type
  • Understand and apply type annotations in functions and objects, along with type inference
  • Describe, declare, and implement interfaces, including interfaces for functions
  • Identify and use operators, objects, and advanced types such as literal types, enums, tuples, arrays, and union types

Key Takeaways

  • TypeScript is a strongly typed programming language built upon JavaScript that adds strong typing, object-oriented programming concepts, and compilation.
  • TypeScript's optional type system enables early error detection through static type checking during development, improving code reliability.
  • Strong typing helps developers write more efficient code by clarifying what type of data is passed between functions, parameters, and variables.
  • TypeScript is portable and can run on any device or platform that supports JavaScript, including mobile and desktop.
  • Learning TypeScript lets you build large-scale and complex applications that need to be strongly typed, object-oriented, and compiled.

Frequently Asked Questions

What is this course about?

This beginner course teaches the basics of TypeScript, a strongly typed programming language built upon JavaScript that introduces strong typing, object-oriented programming concepts, and compilation.

What will I learn to do in this course?

You will learn when and how to use TypeScript, implement primitive and complex data types, understand type annotations, describe and use interfaces, and identify operators and objects.

Do I need prior experience to take this course?

This is a beginner course covering the basics of TypeScript, starting with topics such as installing TypeScript, using it with your IDE, and the TypeScript Playground.

What topics are covered in the lessons?

Lessons cover installing and setting up TypeScript, variables and data types (strings, booleans, numbers, any type), type inference, operators, objects, functions, type annotations, interfaces, literal types, enums, tuples, arrays, union types, and the keyof type operator.

Why use TypeScript instead of JavaScript?

Unlike JavaScript, which is loosely typed, TypeScript's strong typing system enables early error detection, improves code reliability, and helps developers write more efficient, robust, and maintainable software while remaining portable across any platform that supports JavaScript.