Lesson 32 of 55
15 mins readPython Access Modifiers: public, private, protected
In Plain English
Understand the visibility boundaries of class members: public, protected, private, and ECMAScript #private.
Core Rules to Remember
public / protected / private: TypeScript visibility modifiers enforced at compile time.
#private Fields: ECMAScript standard hard runtime encapsulation.
Live Interactive Example
Hit Run Code to see it liveEncapsulating Data with Modifiers
Python 3.12
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Output Console
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How it works: protected members can be read within child classes, while private remains inaccessible outside BaseService.
Your Turn: Micro Challenge
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Micro Exercise
Encapsulate User Credentials
- Create class SafeUser with public username: string and private passwordHash: string.
- Constructor sets both.
- Add method verify(hash: string): boolean that checks this.passwordHash === hash.
- Instantiate with "admin", "hash123", test verify("hash123"), and print result.
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Sandbox Output
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