10.JavaScript Classes & OOP | Constructors, Static Methods, Inheritance | Playwright TypeScript 2026
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JavaScript for Playwright – Part 9 | Classes and OOPs Explained (Playwright TypeScript 2026 Series)
In this video, we dive into Classes and Object-Oriented Programming (OOP) concepts in JavaScript, which are essential for writing scalable and maintainable Playwright automation frameworks.
📚 What you'll learn in this session:
✅ What is a Class and why it acts as a blueprint/template
✅ Creating a Class in JavaScript
✅ Adding Properties and Methods to a Class
✅ Creating Objects and Calling Class Methods
✅ Initializing Class Variables using Methods
✅ Practical Example of Method-based Initialization
✅ Initializing Class Variables using Constructors
✅ Constructor Examples with Real Scenarios
✅ Understanding and Using Static Variables & Methods
✅ Static Keyword Examples
✅ Importing and Exporting Classes across Files
✅ Inheritance in JavaScript Classes
✅ Introduction to Abstract Classes and Interfaces (TypeScript Concept) and why they are not available in JavaScript
🎯 By the end of this tutorial, you'll understand how OOP concepts are used in modern Playwright frameworks and how classes help organize test automation code efficiently.
📌 Topics Covered
Classes
Objects
Properties & Methods
Constructors
Static Methods
Module Import/Export
Inheritance
OOP Fundamentals
Playwright Framework Design
JavaScript ES6 Classes
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