What questions should I ask my React developer?

React JS Job Interview Questions

• What is React JS?
• What are React components?
• What’s the main difference between props and state?
• Choose one component lifecycle method that you’ve used on a project.
• When would you use a class component over a functional component?
• What are React events?
• What is JSX?

What should a react JS developer know?

At a high level, React developers should be able to:

• Work with and write semantic HTML tags.
• Work with and write CSS selectors.
• Implement a CSS reset.
• Understand the box model and how to reset to border-box.
• Understand flexbox.
• Work with and implement responsive web principles including the proper user of media queries.

How would you describe react JS project in interview?

Explain the entire process of how you developed the solution. Also, explain the obstacles you faced in the process and how you solved them. If you are preparing for an interview, check out this React JS Interview Questions blog for most frequently asked questions in an Interview.

What is hooks in React JS?

Hooks are functions that let you “hook into” React state and lifecycle features from function components. Hooks don’t work inside classes — they let you use React without classes. You can also create your own Hooks to reuse stateful behavior between different components.

What is use of Redux in React JS?

React Redux is the official React UI bindings layer for Redux. It lets your React components read data from a Redux store, and dispatch actions to the store to update state.

What are React developers?

A React developer is simply a frontend developer that has extensive experience using React and React Native. They are able to apply their knowledge of JavaScript to create user interfaces that delight users. Full-Stack React developers are also proficient with using MongoDB, Express, and Node.

Why should we hire you as a react developer?

You should hire me for this position because of my proven ability to build efficient front-end user interfaces in line with modern best practices. I am experienced in using JavaScript, as well as the React framework, to develop front-end applications.

What are the basic technical questions asked in interview?

Basic questions to ask in interviews

• Do you have any technical certifications?
• How many programming languages do you know?
• What are the different types of OS you are comfortable working with?
• What is the extent of your technical expertise?
• How many development tools have you used?

What is props in React JS?

React allows us to pass information to a Component using something called props (stands for properties). Props are basically kind of global variable or object. We will learn about these in detail in this article. Passing and Accessing props. We can pass props to any component as we declare attributes for any HTML tag.

What are side effects in React?

Sometimes our components reach outside the React data-flow process and directly interact with other APIs, most commonly in the browser. An action that impinges on the outside world in some way is called a side effect.

What are some good interview questions for ReactJS?

The ReactJS interview questions are grouped into the following categories: Master the fundamentals of React including JSX, props, state, and events. Consider the React.JS Certification Training Course. Enroll now! Here are some ReactJS Interview Questions on basic concepts. 1. What are the features of React?

What is the use of create-react-app?

‘create-react-app’ is a command-line tool which allows you to create one basic react application. Keys allow you to provide each list element with a stable identity. The keys should be unique.

What are the benefits of using keys in ReactJS?

With keys, React would actually re-order the DOM elements, instead of rendering a lot of nested DOM changes. This can serve as a huge performance enhancement, especially if the DOM and VDOM/React Elements being used are costly to render.

What are the advantages of react over JavaScript in web development?

Easy creation of dynamic applications: React makes it easier to create dynamic web applications because it provides less coding and provides more functionality, whereas, with JavaScript applications, code tends to get complex very quickly. Improved performance: React uses virtual DOM, which makes web applications perform faster.