<div>How do you fix the syntax error that results from running this code?</div> <div> <pre class=language-javascript><code>const person =(firstName, lastName) => { first: firstName, last: lastName } console.log(person(jhon, Wolson))</code></pre> </div>

ReactJS - Quiz(MCQ)

How do you fix the syntax error that results from running this code?

const person =(firstName, lastName) =>
       {
            first: firstName,
            last: lastName
        }
console.log(person("jhon", "Wolson"))

Wrap the object in parentheses.

Call the function from another file.

Replace the with an array

Add a return statement before the first curly brace.

Correct Answer : Wrap the object in parentheses.

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; });