Category: ReactJS Interview Question

A React event can be created by doing the following:

An event is an action that a user or system may trigger, such as pressing a key, a mouse click, etc.

These are the steps for creating a React app: We have put together a set of Node.js interview questions in case you would like to explore them. Please note, This is one of the most frequently asked react interview questions.

This is one of the most frequently asked react interview questions. These are the few instances where ES6 syntax has changed from ES5 syntax:

 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. Virtual DOM compares its previous state and updates only those components…

DOM stands for Document Object Model. The DOM represents an HTML document with a logical tree structure. Each branch of the tree ends in a node, and each node contains objects. React keeps a lightweight representation of the real DOM in the memory, and that is known as the virtual DOM. When the state of…

JSX is a syntax extension of JavaScript. It is used with React to describe what the user interface should look like. By using JSX, we can write HTML structures in the same file that contains JavaScript code. 3. Can web browsers read JSX directly?

What are the features of React?JSX:  JSX is a syntax extension to JavaScript. It is used with React to describe what the user interface should look like. By using JSX, we can write HTML structures in the same file that contains JavaScript code.Components: Components are the building blocks of any React application, and a single app usually consists of multiple components. It…