Q1. What is JSX?
_JSX_ stands for _JavaScript XML_ and it is an XML-like syntax extension to ECMAScript. Basically it just provides the syntactic sugar for the `React.createElement(type, ...
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Q2. How to create components in React?
Components are the building blocks of creating User Interfaces(UI) in React. There are two possible ways to create a component. 1. **Function Components:** This is the si...
Q3. How do Vue components communicate with each other?
The primary patterns are props down and events up. A parent passes data via props declared with defineProps, and listens to child events emitted with defineEmits. For dee...
Q4. What are Pure Components?
Pure components are the components which render the same output for the same state and props. In function components, you can achieve these pure components through memoiz...
Q5. What are props in React?
_Props_ are inputs to components. They are single values or objects containing a set of values that are passed to components on creation similar to HTML-tag attributes. H...
Q6. What is the difference between state and props?
In React, both **state** and **props** are plain JavaScript objects, but they serve different purposes and have distinct behaviors: ### State - **Definition:** State is a...
Q7. What are Higher-Order Components?
A _higher-order component_ (_HOC_) is a function that takes a component and returns a new enhanced component with additional props, behavior, or data. It’s a design patte...
Q8. How to apply validation on props in React?
When the application is running in _development mode_, React will automatically check all props that we set on components to make sure they have _correct type_. If the ty...
Q9. What are props?
Props are custom attributes you can register on a component. When a value is passed to a prop attribute, it becomes a property on that component instance. You can pass th...
Q10. What are possible prop types?
You can declare props with type or without type. But it is recommended to have prop types because it provides the documentation for the component and warns the developer ...