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Abhishek kumar

01 Jan 1970 05:30 AM study24x7

Which of the following is a must API for every React.js component?

SetinitialComponent

renderComponent

render

All of the above

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

What are the two ways to handle data in React?

State & Props

Services & Components

State & Services

State & Component

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

What is a state in React?

A permanent storage.

Internal storage of the component.

External storage of the component.

None of the above.

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

How many ways of defining your variables in ES6?

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

How many numbers of elements a valid react component can return?

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

Which of the following acts as the input of a class-based component?

Class

Factory

Render

Props

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

What of the following is used in React.js to increase performance?

Original DOM

Virtual DOM

Both A and B.

None of the above.

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

Which of the following commands is used to install create-react-app?

npm install -g create-react-app

npm install create-react-app

npm install -f create-react-app

install -g create-react-app

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

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.

Web Development

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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/live/makepost.php on line 52

Abhishek kumar

01 Jan 1970 05:30 AM study24x7

Which of the following are the advantages of React.js?

React.js can increase the application's performance with Virtual DOM.

React.js is easy to integrate with other frameworks such as Angular, BackboneJS since it is only a view library.

React.js can render both on client and server side.

All of the above

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