Finding an experienced React JS developer requires some effort. The interview plays an important role. It is there that you can assess and understand the competence of the candidate. Therefore, in this article, we will consider the questions that you need to ask candidates at the interview.
Regularly, many companies are looking for experienced programmers to complete the development of IT projects on time. Finding the ideal candidate is, of course, not an easy task, very often applications are received that do not meet the needs or, in the worst case, do not arrive at all. There is a great solution for this, you can contact https://devoxsoftware.com/hire-react-js-developers/ and get quality work from experts.
During a professional job interview, it is critical to ask the right questions to assess skills and suitability for the role.
Let’s look at some of the key questions and answers you can ask a React developer to find the right person for your company’s software development.
What is ReactJS and what is it used for
React is a JavaScript framework library that allows developers to build simple, fast, and scalable online applications. The framework is efficient, adaptable, and open source.
Due to its ease of implementation, it is widely used for both desktop application development (React) and mobile applications (React Native). It also allows you to use a single code base for all platforms for which software needs to be developed.
Questions for hiring or hiring junior React programmers
Junior React JS developers are a great growth opportunity for your IT team. Although they are not yet experts in their field, they have valuable and fresh knowledge, even if they are often underestimated due to their inexperience.
What are the main benefits of ReactJS?
- Shorter development times
- Ease of development
- Full support from Meta
- Code stability
- The ability to use numerous third-party components
What are links for in React?
Links allow direct access to a DOM element or component instance. To use them, you need to put a ref attribute on a component whose value is a callback function that will receive the underlying DOM element.
What are the benefits of using React Hooks?
Hooks generally allow you to extract and reuse stateful logic that is shared across multiple components.
In addition, hooks allow you to easily manipulate the state of functional components without having to convert them to class components. By using them, you can completely avoid using lifecycle methods.
What is the difference between state and props?
Both of them are plain JavaScript objects. Although both contain information that affects the rendering output, they differ in their functionality from the component:
Props objects are passed to the component similar to function parameters^.
State objects are managed in a component in the same way as variables declared in a function.
Questions to Hire Intermediate/Senior React JS Programmers
Hiring junior developers have many benefits. However, sometimes a team may need a middle/senior React developer who already has some experience.
Here are a few questions to ask an experienced programmer during an interview:
What is base drilling?
When developing a React application, it is often necessary to use a deeply nested component to use data provided by another component that is much higher in the hierarchy.
Support detailing is the simplest approach to managing this data, which is to move from each component to the next in a hierarchical order.
How does rendering work in React JS?
Rendering is an important part of React JS because every component needs it. The render function returns an element representing the DOM component after it has been called. By interpreting the HTML tags and passing them through the render method, many HTML elements can be rendered at the same time.
What is React Component Architecture?
Components are building blocks that create user interfaces for applications.
All individual objects become fully reusable and independent from each other after the creation of a component-based system. This step assumes that the presentation of the application is simple and does not depend on other user interface elements.
By asking these simple questions, you will be able to assess the candidate and his knowledge, thereby making the right decision.
