Practical JavaScript ES6: Working with Classes and Promises — PickAClass
⏱ 3h 📚 30 lessons

Practical JavaScript ES6: Working with Classes and Promises

Learn how to structure applications using modern class syntax, manage complex asynchronous operations with Promises, and implement robust error handling.

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About this course

Modern JavaScript development relies heavily on structuring code using classes and handling non-blocking operations efficiently. This course provides a clear, text-based guide to mastering the fundamental ES6 features necessary for building professional applications. You will move beyond basic syntax to apply these concepts in practical scenarios. What you'll learn: * Understand the concepts of prototypal inheritance and how ES6 class syntax simplifies object creation. * Practice creating classes, constructors, methods, and implementing inheritance patterns. * Master the lifecycle of JavaScript Promises for handling asynchronous operations and chaining tasks. * Apply async and await syntax to write clean, readable asynchronous code that avoids callback hell. * Configure basic ES Module structures using import and export to organize class and function definitions. * Implement robust error handling strategies for both synchronous code and Promise-based operations. The course begins by defining key terminology and exploring object-oriented concepts in JavaScript. We then transition into practical application, guiding you through building and managing complex asynchronous workflows using written examples and exercises. This course is designed for absolute beginners to modern JavaScript or developers familiar with older versions looking to update their skills. No prior knowledge of ES6 or advanced programming concepts is required. Start building robust and scalable JavaScript applications today.

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
    3h 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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Skills profile · verifiable
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Practical JavaScript ES6: Working with Classes and Promises
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
Practical JavaScript ES6: Working with Classes and Promises
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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