JavaScript Object-Oriented Programming with OLOO — PickAClass
⏱ 2h 48m 📚 28 lessons

JavaScript Object-Oriented Programming with OLOO

Master JavaScript prototypal inheritance without constructor functions or the new keyword using the Objects Linking to Other Objects design pattern.

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About this course

Traditional class-based syntax and constructor functions in JavaScript can often lead to confusing code, unexpected behavior with the "this" keyword, and complex prototype chains. Fortunately, there is a cleaner, more intuitive way to share behavior between objects. By leveraging the Objects Linking to Other Objects (OLOO) pattern, you can harness the true power of JavaScript's prototypal nature using simple, clean objects. This course guides you through a modern, step-by-step approach to structuring your JavaScript code without the overhead of constructor functions or classes. You will learn how to design, link, and instantiate objects directly, making your codebase easier to read, maintain, and debug. What you'll learn: - Understand the core principles of JavaScript prototypes and delegation - Implement the Objects Linking to Other Objects (OLOO) pattern in real-world scenarios - Link objects directly using modern methods like Object.create() - Manage execution context and the "this" keyword predictably without constructor functions - Avoid the common pitfalls of classic constructor inheritance and the "new" keyword - Apply modern JavaScript clean-coding practices and object manipulation patterns The course begins with foundational definitions of object prototypes and delegation, ensuring you have a solid conceptual base. From there, you will progress through practical, written examples that compare traditional constructors with OLOO, demonstrating how to refactor and simplify your code. This course is designed for beginner to intermediate JavaScript developers who want a deeper, more natural understanding of how objects work in the language. No advanced object-oriented programming experience is required. Start writing cleaner, more intuitive JavaScript today by mastering the OLOO pattern.

What you'll get

  • 📜 Certificate of completion
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  • 💬 Personal AI tutor
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    2h 48m 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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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
JavaScript Object-Oriented Programming with OLOO
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
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PickAClass — Name Surname
JavaScript Object-Oriented Programming with OLOO
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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Just a phone or computer with internet. No installs, no special hardware.

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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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