
React (The Last Act)
Authored by Saumya Verma
Mathematics
University
Used 14+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What do you call the message wrapped in curly braces below?
let message = 'Hi there';
const element = <p>{message}</p>;
A JS function
A JS element
A JSX wrapper
A JS expression
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following is not a disadvantage of React.js?
React.js has only a view layer. We have put your code for Ajax requests, events and so on.
The library of React.js is pretty large.
The JSX in React.js makes code easy to read and write.
The learning curve can be steep in React.js.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What would be the output of the following example?
var Helloworld=(props)=> {
return(
<div>
Hello World 1
</div>
<div>
Hello World 2
</div>
);
}
ReactDOM.render(<Helloworld/>,mountNode)
Hello World 1
Hello World 2
Hello World 1 Hello World 2
Error
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
How many numbers of elements a valid react component can return?
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following is used to pass data to a component from outside in React.js?
SetState
Render with arguments
Props
PropTypes
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What does ES6 stand for?
ECMAScript 6
ECMA 6
ECMAJavaScript 6
EJavaScript 6
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is Babel?
A JavaScript transpiler
A JavaScript interpreter
A JavaScript Compiler
None of the above
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