Master Access Modifiers in TypeScript⚡| Public, Private & Protected Explained (2026)

When working with Classes in TypeScript, you may not want every property or method to be accessible from everywhere in your application. Some data should be publicly available, while other data should only be accessible inside a Class or its subclasses. This is where Access Modifiers in TypeScript become important. In this TypeScript tutorial, we'll learn the three main access modifiers used with Classes: public, private, and protected. We'll understand what each modifier does, where a property or method can be accessed, and how access modifiers help us implement one of the most important Object-Oriented Programming concepts: Encapsulation. By default, TypeScript Class members are public, meaning they can be accessed from outside the Class. A private member can only be accessed within the Class where it is declared, while a protected member can be accessed within the Class and by Classes that inherit from it. Understanding these differences is essential because access modifiers allow developers to control how different parts of a program interact with a Class. This lesson is part of our Complete TypeScript Course 2026, where we learn TypeScript from beginner to advanced through practical coding examples, real-world scenarios, interview-focused concepts, and industry best practices. 📚 What You'll Learn In This Video ✔ What are Access Modifiers? ✔ Why Access Modifiers are important ✔ What is public? ✔ What is private? ✔ What is protected? ✔ Default access modifier ✔ Public vs Private ✔ Private vs Protected ✔ Public vs Protected ✔ Accessing Class members from outside ✔ Accessing private members ✔ Accessing protected members ✔ Access Modifiers with inheritance ✔ Encapsulation in TypeScript ✔ Real-world examples ✔ Common beginner mistakes ✔ Best practices ✔ Interview questions 🧠 What is Encapsulation? Encapsulation is an important concept in Object-Oriented Programming. It means keeping an object's internal data and implementation details controlled rather than allowing everything to be modified directly from outside. 💻 Real-World Usage Access Modifiers are commonly used in: ✔ Banking Applications ✔ Authentication Systems ✔ User Management ✔ E-commerce Applications ✔ Payment Systems ✔ API Services ✔ Database Services ✔ Business Logic ✔ Employee Management Systems ✔ Enterprise Applications ✔ Backend Services ✔ Full Stack Applications For example, sensitive internal data can be marked private, while functionality that other parts of the application need can remain public. 🎯 Who Should Watch This Video? • TypeScript Beginners • JavaScript Developers • Students Learning OOP • React Developers • Next.js Developers • Node.js Developers • Frontend Developers • Backend Developers • Full Stack Developers • Software Engineering Students • Freelancers • Developers Preparing for Interviews • Anyone Learning Object-Oriented Programming By the end of this lesson, you'll clearly understand public, private, and protected, know how they control access to Class members, and understand how they contribute to encapsulation and safer Object-Oriented Programming. If you're enjoying this Complete TypeScript Course 2026, don't forget to Like 👍, Share 📤, Comment 💬, and Subscribe 🔔. Your support helps us continue creating free programming tutorials, software engineering content, interview preparation material, and practical development courses. #TypeScript #AccessModifiers #PublicPrivateProtected #TypeScriptClasses #OOP #Encapsulation #ObjectOrientedProgramming #LearnTypeScript #Programming #Coding #WebDevelopment #JavaScript #FrontendDevelopment #BackendDevelopment #ReactJS #NodeJS #NextJS #SoftwareDevelopment #CodingTutorial #SoftwareEngineering #TypeScript2026 #TechPakistan ------------------------------------------------------------------------------------------------------------------------------------ Welcome to MO academy – Learn Code the Easy Way We’re Mariyam & Omaima, two friends passionate about coding and technology. On this channel, you’ll find beginner-friendly tutorials and simple explanations of tech concepts to help you learn and grow step by step. 🔥 What you’ll get here: Easy-to-follow coding tutorials Explanations of tech concepts Hands-on projects & practical examples Student-friendly learning content 💻 Connect with us: source code & notes for reactjs playlist:https://github.com/Mariyamsalman/reac... source code & notes for javascript playlist:https://github.com/Mariyamsalman/java... Instagram 👉   / mo.academyy   Facebook 👉   / moacademyy   GitHub of Mariyam Salman 👉 https://github.com/Mariyamsalman GitHub of Omaima Sarfaraz 👉https://github.com/OmaimaSarfaraz ✨ Don’t forget to Like 👍, Share 🔗, and Subscribe 🔔 to stay updated with our latest tutorials! #MO academy #CodingForBeginners #TechTutorials