Junior Developer and Data Science Foundations: JavaScript & Python — PickAClass
⏱ 2h 42m 📚 27 lessons 🎧 Audio version

Junior Developer and Data Science Foundations: JavaScript & Python

Build a strong programming foundation by learning JavaScript for web development and Python for data science, data analysis, and introductory machine learning.

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  • 🕐 Start anytime
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  • 🌐 In English
    Lessons, tasks and certificate — all fully in your language.

About this course

Choosing between web development and data analysis can be challenging when you are starting your coding journey. This comprehensive guide helps you master the core concepts of both JavaScript and Python, giving you a versatile foundation for modern technical roles. By reading and working through the practical text-based exercises, you will transition from a complete beginner to understanding the fundamental building blocks of both full-stack development and data science. You will gain the confidence to write clean code, manipulate datasets, and prepare for entry-level technical interviews. What you will learn: Learn fundamental programming concepts using modern JavaScript and Python; Understand how to build interactive web logic using modern JavaScript standards; Apply Python data analysis libraries, including NumPy and Pandas, to clean and process datasets; Master modern Python practices like type hints and structured code formatting; Explore data visualization principles and the basic concepts of machine learning algorithms; Practice writing clean, interview-ready code through step-by-step written exercises. The course starts with essential terminology and the absolute basics of syntax for both languages. You will then progress through structured written modules covering web scripting with JavaScript, data manipulation with Python, and introductory data science workflows. This text-only course is designed specifically for beginners with zero prior programming experience, as well as busy professionals looking to quickly refresh their knowledge. Start reading today and build a versatile foundation in the two most popular programming languages.

Course contents

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 14-day refund
    No questions asked
  • ⚡ Short & focused
    2h 42m 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
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Junior Developer and Data Science Foundations: JavaScript & Python
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
Junior Developer and Data Science Foundations: JavaScript & Python
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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