react-compound-slider — React compound slider | Next level slider component 🎰 #ReactJS

react-compound-slider — React compound slider | Next level slider component 🎰   #ReactJS

  • To install and save in your dependencies, run: – – This library takes a compound component approach to creating sliders that separates the data/logic from presentation.
  • The components use the function as child components pattern.
  • By taking this approach it also frees you up to render whatever markup you want to customize your slider.
  • In general slider components are composed of a relatively positioned outer div with elements absolutely positioned inside by a percentage.
  • In this library the , , and components are used as children to the component and they let you tap into a stream of values and percentages that you can then use to render your own components.

react-compound-slider – React Compound Slider | Next Level Slider Component :slot_machine:
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i18n with CSS – Coding Outside the Box – Medium

i18n with CSS  #html5 #javascript #react #webdevelopment #css #reactjs

  • JavaScript on the other hand always felt to me like an awkward fit for this task.Internationalization by means of cascading stylesheetsI thought about how to do this with CSS instead and it occurred to me that I could also leverage HTML 5’s lang global attribute.
  • And the :lang() selector provides a powerful way to translate all or part of a site into multiple { content: ‘ÂĄHola Mundo!’ }
  • While unconventional this approach has some advantages like being able to instantly switch the language of a page in its current state — simply by setting the lang attribute of the corresponding DOM element:document.body.lang = ‘es’The main disadvantage is that this method is quite verbose on the stylesheet side.
  • The markup though ends up looking pretty clean:h1 class=”msg-title”/h1h2 class=”msg-subtitle”/h2p class=”msg-description”/pAnd if we happen to make use of LESS, SASS or any other preprocessor we can reduce the CSS verbosity to a minimum.
  • And the best part is that this technique plays nicely with any javascript famework such as React since it operates only on the rendered markup and stylesheet layers.

Externalizing and internationalizing messages in a web application is the kind of problem that used to be easy to solve with server-side scripting tecnologies. JavaScript is a different story
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264: React with Netflix

  • We’re React-ing to a discussion with 3 developers at Netflix about React: Ryan Burgess, Jem Young, and Naoufal Kadhom.
  • Why did Netflix choose React?
  • One of the frustrating things about being a developer, is dealing with errors.
  • Rollbar’s full-stack error monitoring, gives you the context, insights and control you need to find and fix bugs faster.
  • Start tracking errors in 8 mins.

We’re React-ing to a discussion with 3 developers at Netflix about React: Ryan Burgess, Jem Young, and Naoufal Kadhom. Why did Netflix choose React? We also cover the reason behind Netflix’s obsession with A/B testing?
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React and third-party libraries

#ReactJS and third-party libraries:

  • It uses the Tags component that displays an unordered list based on the passed tags prop.
  • Component { render() { return (
      { this.props.tags.map((tag, i) =>

    • { tag }
    • ) }

    ); } }; // App.jsx class App extends React.

  • The very first thing that we have to do is to force a single-render of the Tags component.
  • class Tags extends React.
  • Every time when we click the button we update the state and trigger rerendering of Tags component.

React in patterns project. For other interesting patterns check out the repo.The example jQuery plugin for my example. It transforms an unordered list to input field for managing tags: plugin code. It works like that:. class. It uses the component that displays an unordered list based on the passed prop. When React renders the list on the screen we know that we have a tag so we can hook it to the jQuery plugin.Force a single-render component. That’s because when React adds the elements in the actual DOM we want to pass the control of them to jQuery. If we skip this both React and jQuery will work on same DOM elements without knowing for each other. To achieve a single-render we have to use the lifecycle method like so: here we are saying that our component will never rerender. If defined is used by React to understand whether to trigger or not. That’s ideal for our case because we want to place the markup on the page using React but we don’t want to rely on it after that.Initializing the pluginAPI for accessing actual DOM nodes. We have to use the attribute on a node and later reach that node via . is the proper lifecycle method for initializing the plugin. That’s because we get it called when React mounts the result of the method. lead to React rendering the with two items and then transforms it to a working tag editing widget.Controlling the plugin using React field. Such action will be triggered by the React component and needs to use the jQuery API. We have to find a way to communicate data to component but still keep the single-render approach. class and a button which if clicked will pass a string to component. component. However, because of we update nothing. The only one change is that we get a value of the prop which may be captured via another lifecycle method – : is a pure jQuery code. is a nice place for calling methods of the third-party library. component:Conclusion / blog of Krasimir Tsonev – front and back-end developer who writes for web technologies
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Building single page Apps with React.js

Building single page Apps with React.js
☞

  • If you have frequently changing state or props that you pass down to a component as spread attributes, you may be unnecessarily re-rendering your component.
  • So something to keep in mind when deciding whether a component needs all the changing props and state it may receive.
  • import ClassNames from ‘classnames’ class Icon extends Component { getClassNames() { return ClassNames([ ‘fa’, {fa-`this.props.name`}, this.props.className ]); } render() { return ( ); } }
  • class Icon extends Component { getClassNames() { let classes = `fa fa-${this.props.name}`; if (this.props.className) { classes += ` ${this.props.className}` } return classes; } render() { return ( ); } }
  • I’m very glad I stumbled upon the concept of container components because I’m positive it saved me from creating some very messy React code.

I thought I would write up a few words on my experience with React so far (about 5 months of the publish date of this post) and some conventions
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Optimizing Critical-Path Performance With Express Server And Handlebars – Smashing Magazine

Optimizing critical-path performance with Express Server and Handlebars:  #ReactJS

  • Once the event listener reports that the CSS bundle is ready, remove the inline CSS and serve the bundle.
  • The handleFastcss function will be called immediately after the CSS bundle has loaded.
  • Our CSS bundle will be available at /assets/css/bundle.css .
  • On the first load, load the CSS bundle asynchronously, and attach a load event listener so that we can find out when the bundle is ready to be served.
  • The CSS bundle will also take some time to load, and without it our visitors will see only unstyled markup.

Read the full article, click here.


@ReactiveConf: “Optimizing critical-path performance with Express Server and Handlebars: #ReactJS”


This article contains notes about installing and configuring a critical-path performance optimization using Express and Handlebars.


Optimizing Critical-Path Performance With Express Server And Handlebars – Smashing Magazine