<div>Which of the following is a correct definition of state in react?</div> <div> </div> <div>a) A persistent storage</div> <div> </div> <div>b) An internal data store (object) of component</div>

ReactJS - Quiz(MCQ)

Which of the following is a correct definition of state in react?

a) A persistent storage

b) An internal data store (object) of component

Both A and B

None of the above

Correct Answer : b

Recent Updates in React.JS

Q .

What do you need to change about this code to get it to run?

class clock extends React.Component {
  render() {
    return <h1>Look at the time: {this.props.time}</h1>;
  }
}

Remove this

Capitalize clock

Remove the render method

Add quotes around the return value

Correct Answer : Capitalize clock

Q .

Which Hook could be used to update the document's title?

useEffect(function updateTitle() { document.title = name + ' ' + lastname; });

useEffect(() => { title = name + ' ' + lastname; });

useEffect(function updateTitle() { name + ' ' + lastname; });

useEffect(function updateTitle() { title = name + ' ' + lastname; });

Correct Answer :

useEffect(function updateTitle() { document.title = name + ' ' + lastname; });