Questions frequently asked by front-end interviewers

In front-end development interviews, common questions cover a wide range of topics, including HTML/CSS basics, JavaScript basics, frameworks and libraries, project experience, algorithms and data structures, performance optimization, cross-domain requests, front-end engineering, and design patterns as well as new technologies and trends. Interviewer questions are designed to assess the candidate's technical skills, project experience, and understanding of industry trends. Therefore, candidates should be fully prepared in these areas to demonstrate their abilities and expertise.

In a front-end development interview, the interviewer may ask the following common questions:

1. HTML /CSS Basics: You may be asked about basic knowledge such as the semantics and syntax of HTML tags, commonly used CSS layout methods, and box models.

2. JavaScript basics: It may involve basic knowledge of JavaScript data types, scope, closures, prototype chains, event delegation, etc.

3. Frameworks and libraries: If you mention a certain framework or library in your resume, you may be asked about related knowledge, such as React, Vue, Angular, etc.

4. Project experience: The interviewer may ask you about your past project experience, including challenges you encountered in the project, methods of solving problems, etc.

5. Algorithms and data structures: Some companies may ask some basic algorithm and data structure questions, especially for large technology companies.

6. Performance Optimization: Methods and techniques for front-end performance optimization, and your experience on how to optimize performance in projects.

7. Cross-domain requests: You may be asked about the reasons and solutions for cross-domain requests, such as JSONP, CORS, etc.

8. Front-end engineering: You may be asked about front-end engineering related content, such as building tools, modular development, automated testing, etc.

9. Design patterns: You may ask about the application of common design patterns in front-end development, such as observer pattern, factory pattern, etc.

10. New technologies and trends: The interviewer may ask you about your views on new technologies and development trends in the front-end, such as PWA, WebAssembly, GraphQL, etc.

These questions may be asked during the interview, but the specific questions still depend on the requirements of the interviewer and the company. It is recommended to be fully prepared in these aspects before the interview.

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