Getters and Setters in typescript | Summary and Q&A

TL;DR

Getters and Setters in TypeScript allow for controlled access and manipulation of class properties.

Key Insights

• 🏛️ Getters and Setters in TypeScript are similar to JavaScript and provide controlled access to class properties.
• 🔒 Getters can have additional logic and can be used to access both private and public properties.
• ↩️ Setters should not have a return type and are used to update properties with additional checks and restrictions.

Transcript

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Questions & Answers

Q: What are Getters and Setters in TypeScript?

Getters and Setters in TypeScript are used to control access and manipulation of class properties. Getters allow for reading properties, while Setters allow for updating properties.

Q: Can Getters and Setters have additional logic?

Yes, Getters and Setters can have additional logic. For example, a Getter can perform checks before returning a value, and a Setter can enforce certain restrictions before updating a property.

Q: Can a Getter be used to access public properties?

Yes, a Getter can be used to access both private and public properties. It provides a way to add extra functionality or restrictions when accessing a property.

Q: Why should Setters have no return type?

Setters in TypeScript should not have a return type because their purpose is to update properties, not to return a value. TypeScript enforces this rule to ensure correct usage of Setters.

Summary & Key Takeaways

• Getters and Setters in TypeScript are similar to those in JavaScript.

• Getters are used to access properties and can have additional logic.

• Setters are used to update properties and should not have a return type.