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Quiz - React - 1
Select the right answer for below questions:
What is React?
A front-end framework
A back-end framework
A database
A CSS library
A front-end framework
What is the purpose of the render method in React?
To update the state of the component
To return the HTML structure of the component
To handle events in the component
To initialize the component
To return the HTML structure of the component
How can you update the state of a component in React?
By using the update method
By using the setState method
By modifying the state directly
By calling the render method
By using the setState method
What is the difference between state and props in React?
State is for parent components, props is for child components
State is internal to the component, props are external
State is mutable, props are not
Props are for parent components, state is for child components
State is internal to the component, props are external
What is a pure component in React?
A component that always re-renders when its props change
A component that only re-renders when its state changes
A component that only re-renders when its props or state change
A component that never re-renders
A component that only re-renders when its props or state change
What is JSX in React?
A preprocessor for JavaScript
A language that extends HTML
A styling language for React components
A type of database
A language that extends HTML
What is the purpose of the constructor method in a React component?
To initialize the component's state
To bind the component's methods to this
To initialize the component's props
To initialize the component's event handlers
To initialize the component's state
What is a higher-order component in React?
A component that contains multiple components
A component that is used for conditional rendering
A component that manages the global state
A component that wraps another component
A component that wraps another component
What is the use of the key prop in React?
To control the order in which components are rendered
To pass data from a parent component to a child component
To assign a class name to a component
To assign a unique identifier to a component
To assign a unique identifier to a component
What is the useEffect hook in React used for?
To run a function after a component has finished rendering
To manage side effects in functional components
To run a function before a component is removed from the DOM
To manage global state
To manage side effects in functional components
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