INTRODUCTION TO REACTJS – weLearn WeCode – Medium

Introduction to ReactJS


#javascript #reactjs #webdev #womenintech

  • ReactJS focuses only on the rendering of View (part of MVC), as it does not implement the entire MVC pattern, but tightly focuses on the development of components (views) which are displayed on the user-interface so that it is more efficient in developing dynamic and interactive user-interfaces and its components….
  • Traditionally, when we used to change the data (model in MVC) at server-side, we used to reload the entire page (at client-side) to implement or reflect the updates from the server, which make processing very slow and creates bad user-experiences.
  • But ReactJS has solved these issues as it works at the client-side and takes care of the updates from the server by just changing those particular components or parts of interfaces which are changed, and it does not reload the entire page.
  • DOM (Document Object Model) is the user-interface or HTML document which is rendered or displayed on the screen, and if we have to rerender the entire DOM every time to reflect the changes that come from the server, it would be very expensive and take many CPU-cycles and processor time….
  • To overcome these issues, ReactJS creates Virtual DOMs in memory and whenever any data is changed at the server, ReactJS rewrites the Virtual DOM, and then it performs “diff” operations between all Virtual DOMs… one which was created initially and the other which is created after the change of data….

ReactJS is a JavaScript library used to develop dynamic user-interfaces or the components of user-interfaces like search bars, sliders, and widgets in web applications. ReactJS focuses only on the…
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The Pros and Cons of ReactJS for your Online Business

The Pros and Cons of ReactJS for your #OnlineBusiness via @janlgordon

  • With React, it is possible for webmasters and online business owners to develop large web-based applications that change data while reloading pages.
  • Webmasters can also use React together with other forms of frameworks or JavaScript libraries like Angular in MVC.
  • It makes it possible to reuse components that didn’t produce changes, and this makes programming more comfortable and precise for online business owners.
  • The great news for webmasters is that Google might still find the React component when just the client-side is rendered.
  • ReactJS is a great framework for online business.

This isn’t quite a ReactJS guide for the layman. But it is a useful for business owners, if only to glean enough to know how to talk with your techie
Continue reading “The Pros and Cons of ReactJS for your Online Business”

The Pros and Cons of ReactJS for your Online Business

The Pros and Cons of ReactJS for your Online Business  via @janlgordon

  • With React, it is possible for webmasters and online business owners to develop large web-based applications that change data while reloading pages.
  • Webmasters can also use React together with other forms of frameworks or JavaScript libraries like Angular in MVC.
  • It makes it possible to reuse components that didn’t produce changes, and this makes programming more comfortable and precise for online business owners.
  • The great news for webmasters is that Google might still find the React component when just the client-side is rendered.
  • ReactJS is a great framework for online business.

This isn’t quite a ReactJS guide for the layman. But it is a useful for business owners, if only to glean enough to know how to talk with your techie
Continue reading “The Pros and Cons of ReactJS for your Online Business”

Take 50% off Redux in Motion today, what a deal! #redux #reactjs @thomastuts

Take 50% off Redux in Motion today, what a deal!  #redux #reactjs @thomastuts

  • Redux in Motion introduces you to the powerful Redux library through high-quality video-based lessons and built-in exercises, so you can put what you learn into practice.
  • Redux in Motion guides you through a complete Redux-based web app, start to finish.
  • As you progress you’ll add custom logging and tracking middleware and learn how to combine React with Redux to connect UI components.
  • “It has explained redux better than I have seen elsewhere.”
  • “A good introduction to Redux, and state management more in general.”

See it. Do it. Learn it! Redux in Motion introduces you to the powerful Redux library through high-quality video-based lessons and built-in exercises, so you can put what you learn into practice.
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Debounce Your React and Redux Code to Improve Performance

Debounce Your #ReactJS and Redux #Code to Improve Performance:  by @TreyHuffine #JavaScript

  • Debounce Your React and Redux Code to Improve PerformanceA debounce is a tool that every web developer should have in their kit.
  • Let’s take a look at the individual steps to understand how much we actually saved.After the debounce time expires after the final key press, the first step is to make our API call.
  • Since we have debounced the function that fetches from our API, we only make the request once at the end of typing into the input.There are two things happening here — retrieving projects from the database and then performing heavy calculations to filter and sort the data.
  • By debouncing, we prevent the setState() which serves to significantly reduce the number of times we force React to reconcile and append the list to the DOM.Without a debounce, this component would be almost unusable with such a large amount of data.
  • In addition, you should consider wrapping any interaction that triggers excessive calculations or API calls with a debounce.

A debounce is a tool that every web developer should have in their kit. It improves performance by limiting the number of expensive calculations, API calls, and DOM updates. Although the debounce…
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