The Official Microsoft ASP.NET Site

RESTful Web services with  Core
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#JavaScript #React #reactjs #es6

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  • To view which software uses CEIP, see here.

Home of the Microsoft ASP.NET development community. Download Visual Studio, post to the forums, read ASP.NET blogs and learn about ASP.NET.
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React Router DOM v4 Tutorial (with Examples) • techiediaries

#React Router DOM v4 Tutorial (with Examples)  #reactjs #javascript #Programming #coding

  • The < Route > component is one of the most useful components of React Router v4 and the idea behind it is simple, wherever you want to render something when only there is a match with the location’s path you can use a Route component.
  • We can just append the name to be used for the variable plus a colon : to the end of the route’s path, for example: – – When there is a path match an object which has the following properties will be created and passed to the component: – -…
  • First we import the necessary routing components such as Route and BrowserRouter – – Next we create the base layout component, besides common HTML tags we also use React Router v4 components Link and Route: – – Next we create our pages: – – And finally we create the App…
  • In our example app we used the prop exact in the Route for component HomePage – – That’s because React Router v4 uses inclusive routing instead of exclusive routing used by React Router v3 so without exact property the home component will be rendered with all other components, for example…
  • You can also navigate inside your React application using methods from the history object, for example: – – Which are equivalent to: – – Whenever you want to redirect to another location, you can place component which is when rendered will redirect to the location specified in to prop that…

In this tutorial we are going to get you started with react-router-dom using an example React application showing you how to use different concepts such as Link and NavLink for creating links (instead of anchors) in the React way, Switch and exact for enabling exclusive routing and browser routing history.
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react-props-monitor now too with #react16 #reactjs #styledcomponents 😎

react-props-monitor now too with #react16 #reactjs #styledcomponents 😎

  • In-depth checking props in runtime for any React app.
  • PropsMonitor displays exactly which props caused the error based on PropTypes of component.
  • You can define any validation function for props, based on prevProps, nextProps and name of component.
  • ({ nextProps }) { ( . )
  • ; ; }; ({ prevProps, nextProps, name }) { ( name prevProps .

react-props-monitor – In-depth checking props in runtime for any React app.
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React Progressive Web Apps — Part 1 – Progressive Web Apps – Medium

#ReactJS Progressive #Web Apps:  by @GethylK #JavaScript

  • How to create your first PWA app and/or convert your existing app into PWA.In this example I created new React app with PWA in mind, but the idea should be quite similar if you have to convert your existing app into PWA.You need to understand the lifecycle of a SW, which…
  • Here is the code snippet from index.htmlRegister SW if browser supportsIf the above registration step was successful, then the SW file will be downloaded.
  • Well that is because SW can intercept the fetch event, and this will help if you want to cache something from the network.Updating Cache / Making network calls — Fetch eventSW listens to fetch event, and in our example since we handle only the basic case of caching only the static files,…
  • Adding your app to the Home Screen.Perfect!Step 1 above showed you the importance of SW and how it helps to make your app to be offline first.Step 2, tells you how you can run it from your virtual device.And now let us make it feel a bit more like an app,…
  • I would highly recommend you to use it to generate a report of you webpage.Here is an example of this github example.Webpack run on dev mode yarn startWebpack dev server with prod build yarn start:PRODWhen I first ran the report, the scores where much worse, and I went through the suggestions…

Progressive Web Apps(PWA) are gaining a lot of popularity these day, and with one of the updates this year (2017), the Create React App creates your project by default as PWA. If you haven’t heard of…
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Even Better Support for React in Flow – Flow – Medium

Even Better Support for #ReactJS in Flow:  by @calebmer #JavaScript

  • It is time to rethink how Flow models React.In Flow 0.53.0 we are changing how Flow models React and in doing this we can provide better types for higher-order components, strict typing for React children, and fixes for a host of bugs in Flow’s React support.The biggest change we are…
  • A React component in 0.53.0 looks like this:type Props = { foo: number,};type State = { bar: number,};class MyComponent extends React.ComponentProps, State { state = { bar: 42, }; render() { return this.props.foo + this.state.bar; }}When your component has no state, you only need to pass in a single type…
  • Without state your component definition would look like this:type Props = { foo: number,};class MyComponent extends React.ComponentProps { render() { return this.props.foo; }}If your component has default props then add a static defaultProps property:type Props = { foo: number,};class MyComponent extends React.ComponentProps { static defaultProps = { foo: 42, };…
  • For the React Router example above, you would type the Route component’s children as:type Props = { children: (data: { match: boolean }) = React.Node, path: string,};class Route extends React.ComponentProps { /* … */ }To learn more about typing React children read our documentation guide on the topic.The children prop…
  • Here is how you would type a simple higher-order component that injects a number prop, foo:function injectPropProps: {}( Component: React.ComponentType{ foo: number } Props,): React.ComponentTypeProps { return function WrapperComponent(props: Props) { return Component {…props} foo={42} /; };}class MyComponent extends React.Component{ a: number, b: number, foo: number,} {}const MyEnhancedComponent = injectProp(MyComponent);//…

The first version of Flow support for React was a magical implementation of React.createClass(). Since then, React has evolved significantly. It is time to rethink how Flow models React. In Flow 0.53…
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Visualization tool for #Reactjs, with support for Fiber, Router (v4), and Redux

  • If you’d like to build your own version of React Sight: – – If you have any additional questions send us a message at reactsight@gmail.com 🙂 – – Hover over nodes to see their state and props in the side panel.
  • We built React Sight because there are no tools on the market that give you a visual representation of the structure of your App.
  • When we were developing our own projects, we wished we had a way to see how everything was structured.
  • We wanted React Sight to be simple to use, which is why all you have to do is install a Chrome extension.
  • If you’re interested in joining the React Sight team as a contributor, feel free to message one of us directly.

React-Sight – Visualization tool for React, with support for Fiber, Router (v4), and Redux
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Integrate @theflutterwave Rave Payment Gateway into your ReactJS apps seamlessly with react-ravepayment Github:

  • This is a ReactJS library for implementing RavePay Payment Gateway – – This React library provides a wrapper to add RavePay Payment to your React application – – Then go ahead and reference the Rave inline script in your index.html: – – , { } { state { key ,…
  • Minimum amount allowed NGN 1 while on production or live system, it’s 10 } ( ) { .
  • ; text; } () { ( div className p className RavePaymentModal text metadata {[{Device }]} reference { .
  • amount { .
  • p div ) } } – – Please checkout Rave Documentation for other available options you can add to the tag – – WHEN DEPLOYING TO PRODUCTION/LIVE SYSTEM, take note of the following; – – Why not star the github repo?

react-ravepayment – ReactJS library for implementing RavePay payment gateway
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Github:”