Hello Everyone!
Here I am having some Fun puzzles for you!
Solve and reply your answer!
1.What does the spread operator (…) do in ES6?
A. It creates a new array by concatenating two existing arrays.
B. It creates a new object with the same properties as an existing object.
C. It extracts the elements from an array or the properties from an object and spreads them out into a new array or object.
D. It creates a new function that has the same behavior as an existing function.
- Which of the following is not a feature of ES6 classes?
A. Inheritance
B. Encapsulation
C. Polymorphism
D. Multiple inheritance
- What is the purpose of the React virtual DOM?
A. It provides a way to manipulate the actual DOM directly.
B. It allows for more efficient rendering by only updating the parts of the DOM that have changed.
C. It provides a way to store and manage state information in a React application.
D. It allows for easy integration of third-party libraries and plugins with a React application.
- What is the difference between props and state in a React component?
A. Props are used to pass data from a parent component to a child component, while state is used to store data within a component itself.
B. Props and state are both used to store data within a component, but props can only be passed down from a parent component, while state can only be accessed within the component itself.
C. Props and state are interchangeable terms that both refer to the data stored within a React component.
D. Props are used to define the structure of a component, while state is used to define the behavior of a component.
- What is the arrow function syntax in ES6?
A. function myFunction() {}
B. const myFunction = function() {}
C. () => {}
D. function()
Have a Happy Learning
Thanks & Regards
Teaching Assistant,
Dharshini M.