Full-Stack Developer 面试题与答案
问题 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.
问题 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.
问题 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.
问题 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.
问题 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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