Using Horizon/RethinkDB with React

  • Horizon, which is built on RethinkDB and by the RethinkDB team, facilitates common application development tasks like backend setup, real-time data transfer, security and scalability.
  • This tutorial will give you an introduction to Horizon and RethinkDB while also showing you how to build a simple app with Horizon and React.
  • Before hitting the code, let’s learn a few basic Horizon concepts:

    Horizon groups data into horizon collections and each collection is backed by a RethinkDB table.

  • Here’s a visual to help you make sense of the data flow in this app:

    Note that any change in the data is sent from one React client into Horizon and Horizon sends it back to all React apps so they can update their view, this flow makes sure that all clients are always watching the same without inconsistencies.

  • Our app will use two Horizon collections, one for the “we need list” and other for the “we have list”.

Horizon is an open source Backend as a Service (BaaS) that allows developers to easily build data-driven web and mobile applications. Horizon, which is built on RethinkDB and by the RethinkDB team, facilitates common application development tasks like backend setup, real-time data transfer, security and scalability. Horizon can be run locally, on a private server or in the cloud.
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How to fetch data in React

  • When this method runs, the component was already rendered once with the method, but it would render again when the fetched data would be stored in the local state of the component with .
  • When the data is fetched successfully, it will be stored in the local state with React’s method.
  • The component so far can be split up into two responsibilities: showing the fetched data with conditional renderings and fetching the state with local state management.
  • In addition, the higher order component uses a generic data container in the local state called .
  • By using higher order components to fetch the data, you can easily opt-in this feature for any component with any endpoint API url.

Basics about React’s data fetching to request real world data by using the native fetch API…
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8 things to learn in React before using Redux

  • A component can manage a whole lot of state, pass it down as props to its child components and pass a couple of functions along the way to enable child components to alter the state in the parent component again.
  • Component A is the only component that manages local state but passes it down to its child components as props.
  • In addition, it passes down the necessary functions to enable B and C to alter its own state in A.

    Now, half of the local state of component A is consumed as props by component C but not by component B.

  • When you lift the local state management down to component C, all the necessary props don’t need to traverse down the whole component tree.
  • When a library such as Redux “connects” its state managements layer with React’s view layer, you will often run into a higher order component that takes care of it (connect HOC in react-redux).

Facts about React that should be known before using Redux (or MobX). Most important: Learn React first, then opt-in Redux…
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7 Best Javascript Frameworks To Learn In 2017

  • Node.js is an open-source & cross-platform for best JavaScript frameworks which uses run-time environment for executing JavaScript code on server-side.
  • Angular JS 2 is the most popular as well as best JavaScript frameworks used by many developers to build and maintain complex web applications.
  • A JavaScript framework contains different functionalities which support other parts of the application in a form of services & also improves the existing modules into ES6 modules.
  • Vue collaborates with WEEX, which is a cross-platform UI framework which uses Vue as its best JavaScript frameworks runtime which helps to use same Vue component syntax as well as other components that cannot be rendered in the Browser & also natively on iOS and Android.
  • Ember is a best JavaScript frameworks with front-end design to build websites with rich and complex applications.

7 Best Javascript frameworks 2017: JavaScript is a scripting language used in web development to add dynamic and interactive elements to the websites.
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7 Strengths of #ReactJS Every Programmer Should Know About

7 Strengths of #ReactJS Every Programmer Should Know About

  • React is blazingly fastIt is actually much faster than manually manipulating the DOM, which is the reason why Flipboard has built their own React-Canvas library to achieve 60fps performance on the mobile web.Modifying the DOM after every change can be slow, therefore React creates a simplified JavaScript version of DOM called VirtualDOM and uses a diffing algorithm to apply only necessary changes to the real DOM.JavaScript is a reasonably fast language, and typical web apps consist of only several hundreds of DOM elements.
  • They have invested years into creating the Facebook site, so a complete rewrite just to use React would not be justifiable.It is really easy to use React with jQuery, Angular, Backbone, or any other JavaScript framework.4.
  • You can create truly native apps with JavaScript and other tools you know from the web.
  • Some of the biggest innovations in React were actually inspired by ClojureScript, some were taken from Ember, and some come from Elm.Whether it is ClojureScript, Elm, Angular, or Ember, these great people are part of our Reactive Community, and they remind us why we should work together every day.The React ecosystem is extremely focused on developer experience and productivity.
  • But Facebook is not the only big supporter of the React community: Yahoo, Mozilla, Airbnb, Netflix, and other big companies use React in production and have supported the community with useful open-source libraries and tools.6.

In the past six years, we have seen a huge rise of JavaScript on the web. It has become a prominent server-side language and a popular compile target for other languages. Offline-first SPAs have…
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7 Best Javascript Frameworks To Learn In 2017- Starhead Technologies

  • Node.js is an open-source & cross-platform for best JavaScript frameworks which uses run-time environment for executing JavaScript code on server-side.
  • Angular JS 2 is the most popular as well as best JavaScript frameworks used by many developers to build and maintain complex web applications.
  • A JavaScript framework contains different functionalities which support other parts of the application in a form of services & also improves the existing modules into ES6 modules.
  • Vue collaborates with WEEX, which is a cross-platform UI framework which uses Vue as its best JavaScript frameworks runtime which helps to use same Vue component syntax as well as other components that cannot be rendered in the Browser & also natively on iOS and Android.
  • Ember is a best JavaScript frameworks with front-end design to build websites with rich and complex applications.

7 Best Javascript frameworks 2017: JavaScript is a scripting language used in web development to add dynamic and interactive elements to the websites.
Continue reading “7 Best Javascript Frameworks To Learn In 2017- Starhead Technologies”