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WorksheetsReact Quiz
Total questions: 21
Worksheet time: 11mins
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.
What is the main advantage of using 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.
React.js allows for easy component reusability and modularity.
Which feature of React.js helps in improving code readability?
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.
React.js allows for easy component reusability and modularity.
What is a potential challenge when learning 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.
Does React.js create a VIRTUAL DOM in the memory?
TRUE
FALSE
Can be true or false
Cannot say
What is the purpose of JSX in React.js?
To make code more difficult to read and write
To handle Ajax requests and events
To improve code readability and maintainability
To increase the library size
Which statement best describes the learning curve of React.js?
It is very easy to learn with minimal effort
It has a steep learning curve initially
There is no learning curve at all
It is impossible to learn React.js
How does React.js facilitate component reusability?
By making components difficult to reuse
By limiting the number of components that can be created
By allowing easy creation and reuse of components
By removing the concept of components altogether
What are the two ways to handle data in React?
State & Props
Services & Components
State & Services
State & Component
What is the significance of the virtual DOM in React.js?
It helps in improving code readability
It speeds up the rendering process
It increases the library size
It has no impact on React.js
How does React.js handle data flow between components?
By using only state for data management
By passing data through props
By directly modifying the DOM elements
By creating a separate data layer
What role does the 'key' attribute play in React.js?
It is used to uniquely identify components in lists
It determines the color scheme of the UI
It controls the state of the components
It is not a valid attribute in React.js
Which of the following is used to pass data to a component from outside in React?
props
render with arguments
setState
PropTypes
What describes the ReactJS?
Server Side Framework
Client Side Framework
Both A & B
None of these
ReactJS written in which language?
PHP
JAVASCRIPT
JAVA
NONE OF THIS
What is the purpose of React state?
To store static data
To store styles
To store dynamic data
o store function
What is the use of React hooks?
To manage state and side effects in functional components
To manage styles in functional components
To manage state and side effects in class components
To manage styles in class components
What is the purpose of useEffect hook in React?
To add event listeners
To perform side effects
To render components
To manage state
What is the purpose of useState hook in React?
To manage state in functional components
To manage side effects in functional components
To manage state in class components
To manage side effects in class components
What is the purpose of Higher Order Components (HOCs) in React?
To share data between components
To reuse component logic
To manage component styles
To manage component events
What is the difference between state and props in React?
Props are mutable, state is immutable
Both state and props are mutable
Both state and props are immutable
State is mutable, props are immutable
