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Everything in React is a _____________

Correct Answer : B

React.js covers only the view layer of the app.

Correct Answer : A

Which method in a React Component is called after the component is rendered for the first time?

Correct Answer : B

Which method in a React Component should you override to stop the component from updating?

Correct Answer : B

Which of the following is correct syntax for a button click event handler, foo?

Correct Answer : D

Arbitrary inputs of components in React are called

Correct Answer : B

What create-react-app command do

Correct Answer : B

What is Babel?

Correct Answer : D

In component lifecycle which one is executed before rendering?

Correct Answer : C

What function can be used to change the state of a React component?

Correct Answer : A

What are the two ways that data gets handled in React?

Correct Answer : A

Keys are given to a list of elements in react. These keys should be - 

Correct Answer : C

To achieve dynamic UI updates. Which of the following needs to be updated ?

Correct Answer : C

What function allows you to render React content in an HTML page?

Correct Answer : C

Which helps react for keeping their data unidirectional?

Correct Answer : A

What is state in React?

Correct Answer : B

What is the declarative way to render a dynamic list of components based on values in an array

Correct Answer : D

React JS uses _____ to increase performance

Correct Answer : B

How can you access the state of a component from inside of a member function?

Correct Answer : B

How many elements does a react component return?

Correct Answer : C

What is ReactJS?

Correct Answer : C

What does the "webpack" command do?

Correct Answer : C

Which of the following method define default values for properties using props?

Correct Answer : D

In React what is used to pass data to a component from outside?

Correct Answer : C

When it is recommended to pass this.setState as a function instead of an object?

Correct Answer : B

Which of the following represented the Pre and post life cycle methods of components ?

Correct Answer : D

How do you access a function fetch() from a h1 element in JSX?

Correct Answer : A

React js data flow implementation?

Correct Answer : A

Life cycle methods of a components fall under following categories?

Correct Answer : C

What will happen if you render an input element with disabled = {false}

Correct Answer : A