JavaScript Foundations: Functions, Objects, and the DOM — PickAClass
⏱ 2h 30m 📚 25 lessons

JavaScript Foundations: Functions, Objects, and the DOM

Build a solid understanding of reusable code, structured data, and dynamic web page interaction using modern JavaScript functions, objects, and DOM manipulation.

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About this course

Moving beyond basic variables and loops is the key to writing clean, professional JavaScript. To build interactive web applications, you need to understand how to organize your code with functions and manage structured data with objects. This course guides you through these essential programming building blocks using modern standards. You will learn to write reusable code blocks, structure complex data, and directly manipulate web page elements to create dynamic user experiences. Through clear written explanations and modern code snippets, you will transition from writing simple scripts to structuring maintainable web programs. What you'll learn: - Understand foundational concepts of scope, parameters, and return values in functions - Write concise, modern code using arrow functions and template literals - Create and manipulate JavaScript objects to manage complex application data - Apply modern ES6+ features such as destructuring and object property shorthand - Interact with web pages dynamically using modern DOM selection and manipulation methods - Practice responding to user actions by implementing event listeners The course begins with core definitions of functions and scope before progressing to object-oriented concepts and practical browser interaction. You will follow structured written explanations and code analysis designed to build your confidence step by step. This course is designed for beginners who have a basic grasp of JavaScript variables and control flow but want to learn how to structure real-world scripts. No advanced programming experience is required. Start reading today to take your web development skills to the next level.

Course contents

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • ⚡ Short & focused
    2h 30m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
Skills profile · verifiable
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
JavaScript Foundations: Functions, Objects, and the DOM
Skills demonstrated
✓
Behavioral pattern analysis
Foundational
1.2 hrs
✓
Decision-architecture frameworks
Proficient
1.4 hrs
✓
A/B test design
Proficient
1.7 hrs
✓
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
JavaScript Foundations: Functions, Objects, and the DOM
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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