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1. What is React JS?
A back-end programming languageA front-end JavaScript libraryA database management systemA server-side scripting language
A server-side rendering engineA CSS preprocessorA JavaScript syntax extensionA web development framework
To enhance the user interface with animations and effectsTo provide a way to store and manage data in React componentsTo enable server-side rendering of React componentsTo improve performance by reducing the need for costly DOM operations
Props are immutable and passed from parent to child components while state is mutable and managed within a componentProps are mutable and managed within a component while state is immutable and passed from parent to child componentsProps and state are interchangeable terms in React JSProps and state have no role in React JS components
To enhance the performance of React componentsTo facilitate server-side rendering of React componentsTo provide a way to manage asynchronous data flow in React componentsTo enable functional components to have state and lifecycle methods
To provide a way to handle user input in React componentsTo render components on the server sideTo manage side effects such as fetching data from an API or subscribing to eventsTo manage state changes in React components
To provide a way to handle user input in React componentsTo manage side effects such as fetching data from an API or subscribing to eventsTo provide a way to share data between components without the need for propsTo manage state changes in React components
To provide a way to share data between components without the need for propsTo optimize performance by caching expensive computationsTo manage side effects such as fetching data from an API or subscribing to eventsTo manage state changes in React components
To optimize performance by caching functions and avoiding unnecessary re-rendersTo provide a way to share data between components without the need for propsTo manage side effects such as fetching data from an API or subscribing to eventsTo manage state changes in React components
To provide a way to handle user input in React componentsTo manage side effects such as fetching data from an API or subscribing to eventsTo provide a way to access DOM elements or React components directlyTo manage state changes in React components
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