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Learn JavaScript: A Practical Beginner's Guide
New
55 students

Learn JavaScript: A Practical Beginner's Guide

Learn JavaScript fundamentals through practical examples, exercises, DOM, functions, arrays, and objects
Created bySuman Kunwar
Last updated 8/2026
English

What you'll learn

  • Understand the fundamentals of JavaScript and how it is used in web development.
  • Work with variables, data types, strings, numbers, and operators.
  • Use conditions to make decisions in JavaScript programs.
  • Create, access, and work with arrays and collections of data.
  • Use loops to repeat tasks and process data.
  • Create reusable functions with parameters and return values.
  • Understand and work with JavaScript objects.
  • Use the DOM and events to make webpages interactive.
  • Understand the basics of asynchronous JavaScript and working with APIs.
  • Apply what you learn through practical exercises and a Tip Calculator project.
  • Use Learn JavaScript: Beginner Edition as a reference for deeper explanations, additional exercises, and projects.

Course content

11 sections25 lectures38m total length
  • Introduction0:53

Requirements

  • No prior JavaScript or programming experience is required.
  • Basic familiarity with using a computer and a web browser is helpful.
  • Learners should be willing to write and practice JavaScript code during the course.
  • A modern web browser such as Chrome, Firefox, Edge, or Safari is recommended.
  • No paid software is required.

Description

This course is designed for learners who want to understand the fundamentals of JavaScript without being overwhelmed by too much information at once.

You'll begin with the building blocks of JavaScript, including variables, data types, strings, numbers, and operators. From there, you'll learn how to make decisions with conditions, work with collections using arrays, repeat tasks with loops, and create reusable code with functions.

You'll also explore objects and learn how JavaScript can interact with webpages through the Document Object Model (DOM) and events. Toward the end of the course, you'll get an introduction to asynchronous JavaScript and working with data from web APIs.

The course follows a simple learning approach:

Understand → See an example → Practice → Apply

Each section focuses on the key ideas you need to understand, followed by practical examples and exercises that encourage you to write and experiment with the code yourself.

You'll also bring several of these concepts together by building a practical Tip Calculator, giving you an opportunity to apply JavaScript to an interactive webpage.

This course is based on Learn JavaScript: Beginner Edition. The accompanying book can be used as a reference when you want to explore a topic in greater depth, with additional explanations, examples, exercises, and projects.

Whether you're completely new to JavaScript or looking for a structured way to strengthen your fundamentals, this course provides a practical starting point for your JavaScript journey.

By the end of the course, you'll have a foundation you can build upon as you continue learning JavaScript and developing your own projects.

Who this course is for:

  • Beginners who want to learn JavaScript from the ground up.
  • Learners who have little or no programming experience.
  • Anyone who wants a short, practical introduction to JavaScript fundamentals.
  • Learners who prefer simple explanations, practical examples, and hands-on exercises.
  • Beginners who want to start building interactive webpages with JavaScript
  • Learners who want a structured starting point before exploring JavaScript in greater depth.