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Free course English Verified certificate Beginner #Programming Basics #javascript #basics

JavaScript Basics

EN PL

Learn JavaScript step by step with clear explanations and small, practical examples. You’ll practice storing data, making decisions, repeating tasks, and writing simple functions and array-based solutions so you can use what you learn right away.

4.4 (5 ratings)
128 learners enrolled
434 views
17 lessons
~45 min total
Self-paced, lifetime access

What is this course about?

A practical, hands-on introduction to JavaScript for working adults who want useful skills they can apply right away. This course focuses on clear explanations, small real-world examples, and simple exercises you can finish in 5 to 15 minutes. You will learn how JavaScript works, how to store and transform data, how to make decisions with code, how to repeat tasks efficiently, and how to build small functions and arrays-based solutions. Each module starts with a short overview and every lesson ends with practical action steps, so you can learn by doing from the very beginning.

What are the key facts about this course?

Price Free
Certificate Verified certificate
Duration 45 min
Lessons 17
Language English
Level Beginner
Exam Self-paced, lifetime access

Curriculum

5 modules · 17 lessons

1
Module 1: Getting Started with JavaScript
4 lessons
  • What JavaScript Does and Where It Fits
  • Your First JavaScript Setup
  • Writing Your First Statements
  • Understanding Variables and Basic Data Types
2
Module 2: Working with Data
4 lessons
  • Operators for Everyday Calculations
  • Strings, Numbers, and Useful Conversions
  • Comparing Values and Making Checks
  • Turning Raw Input into Useful Data
3
Module 3: Decisions and Repetition
4 lessons
  • Using if Statements to Make Decisions
  • Combining Conditions with Logical Operators
  • Repeating Tasks with Loops
  • Working with Loop Results in Real Situations
4
Module 4: Functions, Arrays, and Small Practical Projects
4 lessons
  • Creating and Using Functions
  • Arrays for Lists You Need to Manage
  • Useful Array Methods for Beginners
  • Mini Project: Build a Simple Habit Tracker
5
Course Summary
1 lessons
  • Review, Practice, and Next Steps

Certificate of completion

After finishing this course you will unlock a verified certificate — downloadable as PDF, with a unique number and public verification link.

Each certificate has a unique verifiable link and QR code.

Frequently asked questions

Is this course free to start?

Yes. You can start learning this course for free.

Who is this course for?

This course is designed for learners who want practical, job-relevant skills and a structured path from basics to application.

Do I need prior experience?

No prior experience is required unless specific prerequisites are listed in the course requirements section.

How long does this course take?

The estimated total study time for this course is 45 min.

How does the certificate work?

After finishing this course you can download a verified certificate with a unique number and public verification link.

Learner reviews

4.4
5 ratings
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S
Sarah M. Verified · 7 Jun 2026

Clear and practical

The examples on storing and transforming data were easy to follow. I just wished a couple of the exercises had a bit more variety.

R
Rachel T. Verified · 7 Jun 2026

Good walkthrough of the basics, especially the if/else parts and simple loops. I’d have liked a few more practice prompts at the end, but it was solid.

N
Nathan J. Verified · 7 Jun 2026

Loops clicked fast

Finally got how repeat tasks work in JavaScript.

R
Ryan O. Verified · 7 Jun 2026

Nice real-world examples

The small examples made the decision-making lessons feel usable right away. The bit on turning data into something cleaner was the part that stood out most.

D
David K. Verified · 7 Jun 2026

Straight to the point

Useful intro to variables, conditionals, and loops. A little more depth on building small scripts would’ve been nice.

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