Drawing Polygons with Holes on Google Maps using JavaScript — PickAClass
⏱ 2h 48m 📚 28 lessons

Drawing Polygons with Holes on Google Maps using JavaScript

Learn to construct complex, interactive geographical boundaries with inner and outer paths using modern JavaScript and the Maps API.

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About this course

Do you need to represent complex geographical areas, such as a territory with an excluded center, on an interactive map? Standard shapes often fall short when mapping real-world regions that contain lakes, restricted zones, or nested boundaries. This text-based course guides you through the process of rendering advanced polygons with hollow interiors using the Google Maps JavaScript API. You will learn to manipulate spatial data and implement clean, modern code to create highly functional interactive maps. What you'll learn: - Understand the core concepts of coordinates, paths, and spatial geometry on web maps - Define outer boundaries and nested inner paths to construct hollow polygons - Apply modern JavaScript ES6+ features to write clean, maintainable map rendering code - Configure customized polygon styles, including stroke weight, fill colors, and opacity - Handle map events to make your custom shapes interactive for users - Implement asynchronous loading practices for the Maps API to ensure optimal performance You will start with the fundamental terminology of digital mapping and coordinate systems before moving on to practical coding exercises. Step-by-step, you will construct a fully interactive map featuring custom multi-path polygons, complete with event listeners and modern styling. This course is designed for web developers and beginners who want to enhance their interactive mapping skills. No prior experience with mapping APIs is required, though a basic understanding of JavaScript is helpful. Start building more precise, professional maps today.

Course contents

What you'll get

  • 📜 Certificate of completion
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  • 💬 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 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
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Name Surname
has successfully demonstrated mastery of
Drawing Polygons with Holes on Google Maps using JavaScript
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Behavioral pattern analysis
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1.2 hrs
✓
Decision-architecture frameworks
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1.4 hrs
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A/B test design
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1.7 hrs
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1.9 hrs
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Drawing Polygons with Holes on Google Maps using JavaScript
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
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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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