what is react component - Wikitechy https://www.wikitechy.com/interview-questions/tag/what-is-react-component/ Interview Questions Tue, 29 Mar 2022 12:22:05 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png what is react component - Wikitechy https://www.wikitechy.com/interview-questions/tag/what-is-react-component/ 32 32 What is React ? https://www.wikitechy.com/interview-questions/reactjs/what-is-react/ https://www.wikitechy.com/interview-questions/reactjs/what-is-react/#respond Sat, 19 Mar 2022 12:50:40 +0000 https://www.wikitechy.com/interview-questions/?p=3940 • It is a front-end JS library developed by Facebook in 2011.
• It was created by Jordan Walke.
• It is quite the buzzword in the industry these days.
• It is useful for developing user interfaces specifically in applications with a single page.
• It is also for developing interactive view layer of web and mobile apps.
• It will make use of the virtual DOM rather than real DOM (Data Object Model) as RealDOM manipulations are expensive.
• It allows us to create reusable behavior across any of our components with React hooks.
• It is provided by the Redux or Flux in MVC architecture.

Advantages of React

  • Makes JavaScript coding easier.
  • Template designing made easy.
  • Provides amazing developer tools.
  • Reusable Components.
  • SEO Friendly.

Disadvantages of React

  • JSX as a barrier.
  • Lack of Documentation.
  • Poor Documentation.
  • It Covers only the UI Layers of the app and nothing else.

Features of React

 

Jsx :

  • JSX is a preferable choice for many web developers.
  • It makes the syntax just like HTML and is used to create React components by developers.
  • It is a syntax extension to JavaScript.
  • It is super easy for developers to write the building blocks.

  Virtual DOM :

  • In this object is a perfect description of the original DOM object
  • It will modify only that object in real DOM instead of updating whole objects.
  • It compares the difference between the new DOM and previous DOM representation.
  • It will reduces the time and cost taken for development.

Performance :

  • React divides the complex user interface into unique elements.
  • It increase the development time, multiple users can work on each element simultaneously.
  • It will perform efficiently.

One-way Data binding :

  • It provides good control throughout the application.
  • This gives better control over it.
  • It is designed to the extent that it can support One-way data binding or Unidirectional dataflow.

Declarative UI :

  • It is the best for creating engaging and interactive user interfaces for mobile.
  • It will generate a simple view for each state of the application
  • In this feature makes React code more readable and easier to fix bugs.

Components :

  • Components are the heart and soul of React
  • The applications of ReactsJS are created with multiple components.
  • React JS components play a huge part in deciding the app visuals and interactions.
  • It is made up of several components.

 

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