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Full-Stack Developer Pertanyaan dan Jawaban Wawancara

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Ques 6. Explain the concept of virtual DOM in React.js.

The virtual DOM is an in-memory representation of the real DOM elements in a React application. It allows React to efficiently update and render components.

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Ques 7. What is CORS, and how does it affect web development?

CORS (Cross-Origin Resource Sharing) is a security feature that controls how web pages in one domain can request and interact with resources from another domain.

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Ques 8. Explain the role of webpack in a Full-Stack development environment.

Webpack is a module bundler that transforms and bundles assets, such as JavaScript, CSS, and images, for efficient loading in web applications.

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Ques 9. What is the significance of promises in JavaScript?

Promises are used to handle asynchronous operations in JavaScript, providing a cleaner and more readable way to manage callbacks.

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Ques 10. Explain the concept of token-based authentication.

Token-based authentication involves issuing a token (usually a JSON Web Token or JWT) to authenticated users, which is then included in subsequent requests for authorization.

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