What is React.js?
List some of React.js’ features.
Important features of React.js include:
What are the main advantages of React.js?
The main advantages of React.js are:
If you can include some practical experience demonstrating the advantages of React.js in this React.js interview question, you are likely to impress the recruiter.
What is JSX?
Can web browsers identify JSX?
What is virtual DOM?
DOM is the abbreviated version of the Document Object Model. The DOM shows the logical tree structure for an HTML document. There is a node at the end of each tree branch, with every tree node containing one or more objects.
In React.js, a lighter version of real DOM is stored in the memory. It is called the Virtual DOM. When there are any changes in specific objects, instead of updating all objects, only those specific changes are updated in the real DOM. This increases the efficiency and speed of the program. For a React.js interview question like this, if you have the opportunity to illustrate through a diagram, you must, as it shows the depth of your understanding.
How is an application created using React.js?
We can use the following steps:
Be sure to mention all points in detail for such a React.js interview question.
Describe an event in React.js?
When a user presses a key, clicks the mouse, or performs any action on the machine or when the machine itself triggers an action, these actions are registered as events in React.js.
How do Lists work in React.js?
Why are keys used in React.js Lists?
Keys are used in React.js Lists because:
React.js interview questions that ask about the use of a certain function or component in React.js programming are common.
The above are some basic and advanced React.js coding interview questions. However, you will do well to prepare some soft-skills-based questions and answers too, apart from the technical React.js interview questions and answers. Companies must also assess the soft skills of their potential employees to ensure they are a good fit for the company’s culture. If you think you have mastered the React.js interview questions, we encourage you to take Turing tests to find out if you are among the best React.js developers. If you are a recruiter looking for the best React.js developers, get in touch with Turing.
Tell us the skills you need and we'll find the best developer for you in days, not weeks.