Time Left : 00 : 30 : 00
What is ReactJS?
Correct Answer : C
Everything in React is a _____________
Correct Answer : B
In React what is used to pass data to a component from outside?
Correct Answer : C
What are the two ways that data gets handled in React?
Correct Answer : A
Which of the following method define default values for properties using props?
Correct Answer : D
What is a controlled input element?
Correct Answer : B
Which is used to update the state?
Correct Answer : B
What will happen if you render an input element with disabled = {false}
Correct Answer : A
In which directory React Components are saved?
Correct Answer : A
Which of the following is the correct data flow sequence of flux concept?
Correct Answer : B
To achieve dynamic UI updates. Which of the following needs to be updated ?
Correct Answer : C
How can you access the state of a component from inside of a member function?
Correct Answer : B
What is state in React?
Correct Answer : B
Props are __________ into other components
Correct Answer : A
Which of the following API is necessary for React.js component?
Correct Answer : D
Which method in a React Component is called after the component is rendered for the first time?
Correct Answer : B
How do you write an inline style specifying the font-size:12px and color:red; in JSX
Correct Answer : B
React.js covers only the view layer of the app.
Correct Answer : A
Which helps react for keeping their data unidirectional?
Correct Answer : A
How do you access a function fetch() from a h1 element in JSX?
Correct Answer : A
React js data flow implementation?
Correct Answer : A
Which of the following is correct syntax for a button click event handler, foo?
Correct Answer : D
Life cycle methods of a components fall under following categories?
Correct Answer : C
What does the "webpack" command do?
Correct Answer : C
What is Babel?
Correct Answer : D
How many elements does a react component return?
Correct Answer : C
What is the second argument for setState useful for?
Correct Answer : A
In component lifecycle which one is executed before rendering?
Correct Answer : C
Which method in a React Component should you override to stop the component from updating?
Correct Answer : B
Which of the following called fat arrow function in react?
Correct Answer : D