Navigating the job market as a front-end developer can be both exciting and overwhelming. Preparing for interviews is a crucial step that helps you confidently showcase your skills and potential. This guide aims to equip you with common front-end interview questions and answers that can bolster your knowledge and prepare you for various scenarios.

Table of Contents

• Common Interview Questions
• Common Technical Interview Questions
• HTML Interview Questions
• CSS Interview Questions
• JavaScript Interview Questions
• React Interview Questions
• TypeScript Interview Questions
• Security
• Testing Questions
• GIT
• Funny Questions
• Contribution

Common Interview Questions

• What was the most interesting solution you implemented in your last project?
• What’s the latest programming book you’ve read?
• Have you worked in Agile, Scrum, or Kanban environments?
• What makes you a good developer?
• What values can you bring to a new team?
• Describe your most recent project.

Common Technical Interview Questions

• What is REST? – Documentation
• What is the difference between imperative and declarative programming in JS? – Read more
• What is CORS? – Blog
• What do you know about performance optimizations in web applications?

HTML Interview Questions

• Could you list major HTML5 tags?
• What does an optional closing tag mean?
• What is the difference between id and class?

CSS Interview Questions

• What is the difference between mobile-first and desktop-first?
• What preprocessor do you use? (e.g., Sass or Less)

JavaScript Interview Questions

Imagine you are trying to explain how JavaScript works to a friend using a pizza analogy. Analogously, JavaScript can be compared to a pizza being made:

• The Dough: This represents the basic structure of your code—it’s essential for everything else.
• The Sauce: Functions and methods are like the sauce that adds flavor and specificity to your pizza.
• The Toppings: The various libraries and frameworks you use—like React, jQuery—represent the toppings that give your pizza (application) its personality.
• The Cooking Process: Execution context and the event loop manage how everything is prepared and served to the consumer (user).

React Interview Questions

• What is a higher-order component?
• How do lifecycle methods correspond to hooks?

TypeScript Interview Questions

• What are public, private, and protected class access modifiers?
• What is a generic type?

Security

• What are the most common types of web attacks? – Learn more

Testing Questions

• Explain the difference between unit tests and integration tests.
• What frameworks do you use for testing your code?

GIT

• What is the main difference between merge and rebase?

Funny Questions

• Do you like parties?
• Do you know that we have a dress code?

Contribution

It would be great to find your front-end interview questions on our list. Check out the contributing guide to get started.

Troubleshooting

If you encounter any issues or have further questions, don’t hesitate to reach out and connect with others in the field. For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.