How you implement Server-Side Rendering or SSR?
- Use a third-party library
- Use the "ReactDOMServer" module
- Use the "ReactServer" package
- Use the "server-render" package
To implement server-side rendering (SSR) in React, you can use the "ReactDOMServer" module. This module provides a method called "renderToString" that allows you to render a component to HTML on the server. You can then send this HTML to the client, where it can be hydrated into a full React application.
Do you need to have a particular build tool to use Redux?
- Yes, you need to use Webpack to use Redux
- No, you can use any build tool with Redux
No, you do not need to use a particular build tool to use Redux. Redux is a standalone library that can be used with any JavaScript build tool, including Webpack, Rollup, and Browserify. However, some build tools may have specific plugins or configurations that make it easier to work with Redux, so it's worth checking the documentation for your build tool to see if there are any recommended setups.
How to ensure hooks followed the rules in your project?
- Use a linter plugin such as eslint-plugin-react-hooks
- Use a testing framework to check for rule violations
- Use a code review process to check for rule violations
- All of the above
To ensure that hooks are being used correctly in a project, developers can use a linter plugin such as eslint-plugin-react-hooks to check for rule violations. They can also use a testing framework to check that the application behaves as expected when hooks are used. Finally, a code review process can help catch any rule violations before they are merged into the codebase.
Can you describe the componentDidCatch lifecycle method signature?
- componentDidCatch(error: Error, errorInfo: object)
- componentDidCatch(error: string, errorInfo: object)
- componentDidCatch(error: Error, errorInfo: string)
- componentDidCatch(error: string, errorInfo: string)
The componentDidCatch lifecycle method is called whenever an error is thrown in a component's child tree. The method has a signature of componentDidCatch(error: Error, errorInfo: object). The error parameter is the actual error object that was thrown, while the errorInfo parameter is an object that contains additional information about the error, such as the component stack trace.
How to use font-awesome icons in React?
- Use the Font Awesome component library for React
- Import the Font Awesome CSS file and use the class names
- Use the React Native vector icons library
- There is no way to use Font Awesome icons in React
To use Font Awesome icons in React, you can use the Font Awesome component library for React. This library provides a set of pre-built components for rendering Font Awesome icons, which you can use in your React applications. Alternatively, you can import the Font Awesome CSS file and use the class names directly in your components.
What is the main purpose of constructor?
- To initialize the component's state and bind methods to the component
- To define the component's markup and styling
- To render the component's children
- To handle events and update the component's state
The main purpose of the constructor in a React component is to initialize the component's state and bind methods to the component. The constructor is called before the component is mounted and can be used to set the initial state of the component or to bind methods to the component.
What is Redux DevTools?
- A Redux middleware for handling asynchronous actions
- A debugging tool for Redux applications
- A UI toolkit for building web applications
- A React component for handling forms
Redux DevTools is a browser extension and development tool that provides a visual interface for debugging and inspecting the state of a Redux application. It allows you to track and debug state changes, as well as inspect actions and reducers in real-time.
What is render hijacking in React?
- When a component's render method is called multiple times
- When a component modifies the rendering behavior of its children
Render hijacking is a technique used in React where a component modifies the rendering behavior of its children by wrapping them in higher-order components (HOCs). This can be used to add or modify props, add event handlers, or manipulate the rendering of the children in other ways. While this can be a powerful technique, it can also lead to code that is difficult to reason about and maintain.
Is it possible to use React without JSX?
- Yes, JSX is optional in React
- No, JSX is required in React
JSX is a syntax extension for JavaScript that allows developers to write HTML-like syntax in their JavaScript code. While JSX is the preferred way to write React components, it is not strictly required. React components can also be written using plain JavaScript syntax, although this can be more verbose and difficult to read. However, JSX is widely used in the React community and is considered a best practice for writing React components.
What are the Pointer Events supported in React?
- Both mouse and touch events
- Mouse events only
- None of the above
- Touch events only
React supports both mouse and touch events through the use of Pointer Events. Pointer Events are a standardized event model that provide a unified way to handle mouse, touch, and stylus input. React provides a set of event handlers for Pointer Events, such as "onPointerDown" and "onPointerMove", that can be used to create responsive and touch-friendly user interfaces.
How to create props proxy for HOC component?
- By passing the additional props as arguments to the HOC function
- By using the setState() method to add the additional props to the component's state
- By using the this.props object to add the additional props to the component's existing props
- By wrapping the component with another component that adds the additional props
To create a props proxy for an HOC component, you can wrap the component with another component that adds the additional props. This is done by defining a new component that takes the original component as input and returns a new component that includes the additional props.
What is an action in Redux?
- A function that transforms the Redux store state
- An object that describes a change in the Redux store state
- A middleware function that handles asynchronous actions
- A component that is rendered in response to user input
An action in Redux is an object that describes a change in the Redux store state. Actions are the only way to update the state of the Redux store, and they must have a type property that describes the type of action being performed. In addition to the type property, actions can also have additional data that is used to update the state.