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Sep 16, 2025
10m:2s
Constructor Functions & Prototypes
Classification
Software Engineering | Languages | JavaScript
Keywords
javascript
About This Episode:
Before ES6 classes came along, JavaScript had its own way of doing object-oriented programming—using constructor functions and prototypes. In this episode, we’ll take a step back in time and uncover how developers structured code for reusability and efficiency. 🏗️
Here’s what we’ll explore:
🏭 Object factories vs constructor functions—and why constructors gave us more power.
🆕 The magic of the new keyword and how it creates object instances.
🛠 Adding methods through prototypes to keep memory usage efficient.
💡 Why this pattern still matters today (hint: classes are built on top of it!).
By the end, you’ll see how prototypes formed the backbone of JavaScript’s object system—and why understanding them gives you a deeper grasp of how modern classes really work. 🚀
Here’s what we’ll explore:
🏭 Object factories vs constructor functions—and why constructors gave us more power.
🆕 The magic of the new keyword and how it creates object instances.
🛠 Adding methods through prototypes to keep memory usage efficient.
💡 Why this pattern still matters today (hint: classes are built on top of it!).
By the end, you’ll see how prototypes formed the backbone of JavaScript’s object system—and why understanding them gives you a deeper grasp of how modern classes really work. 🚀
Short Bio:
Bob Cravens is a seasoned technology leader, software architect, and educator with a passion for empowering others through practical, real-world knowledge. As the founder of TekFoundry, Bob has dedicated his career to designing and delivering innovative software solutions that combine cutting-edge technology with elegant simplicity.
At TekCasts, Bob leverages over two decades of experience in software engineering, application architecture, and team leadership to create engaging, high-impact courses for developers and technology professionals. His instructional style is rooted in practical application, offering insights drawn from his extensive background in industries like medical devices and global technology consulting.
Bob’s expertise spans a variety of technologies and methodologies, including PHP/Laravel, FastAPI, and DevOps, as well as architecture best practices and team dynamics. Whether teaching foundational concepts or advanced strategies, he’s passionate about helping others turn complex challenges into streamlined solutions.
When not crafting elegant code or inspiring the next generation of tech innovators, Bob enjoys exploring the intersection of technology, business strategy, and creative problem-solving.
At TekCasts, Bob leverages over two decades of experience in software engineering, application architecture, and team leadership to create engaging, high-impact courses for developers and technology professionals. His instructional style is rooted in practical application, offering insights drawn from his extensive background in industries like medical devices and global technology consulting.
Bob’s expertise spans a variety of technologies and methodologies, including PHP/Laravel, FastAPI, and DevOps, as well as architecture best practices and team dynamics. Whether teaching foundational concepts or advanced strategies, he’s passionate about helping others turn complex challenges into streamlined solutions.
When not crafting elegant code or inspiring the next generation of tech innovators, Bob enjoys exploring the intersection of technology, business strategy, and creative problem-solving.