For animating #d3js in #reactjs react-transition-group react-motion…

  • For a drop-in replacement for and , use the v1 release, which is still actively maintained.
  • Documentation and code for that release are available on the branch.
  • You can send pull requests with v1 bugfixes against the branch.

react-transition-group – An easy way to perform animations when a React component enters or leaves the DOM
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react-transition-group
react-motion…”

Why build your forms with Redux Form – DailyJS – Medium

  • Why build your forms with Redux FormWhen I usually create forms for my React/Redux applications I tend to keep the value of the inputs on the application state, with little to no editing, (because my forms are usually simple), I never stopped to realize what that means.
  • It also receives an event handler that will update the state when the user interacts with it.It means that when the user types the letter “J” on the input, what is visible is not the same “J”, it may be an identical “J” that comes from the state, or whatever…
  • It keeps track of all common application form state such as:The fields that are in the form;The values of each field;The focused field;If the field values are valid;The fields that the user have interacted with;If the form is being submitted;If is happening any asynchronous validation.Let’s take a look at a…
  • It will also hand us the handleSubmit function, which will take care of the submission behavior.The Field component takes our input component as its props and acts as a container, bringing the application state to the input component and binding the event handlers to update the state in store.Look at…
  • Look that the default value of the input is defined when the high-order component reduxForm is called and comes to the input within the prop input and not from the react’s prop defaultValue, this way we guarantee that our form values are all represented in the application state.In summary, having…

When I usually create forms for my React/Redux applications I tend to keep the value of the inputs on the application state, with little to no editing, (because my forms are usually simple), I never…
Continue reading “Why build your forms with Redux Form – DailyJS – Medium”

Content Swiper for React Native is released

Check out our content swiper component for #reactnative

  • When we were implementing the Cheapp application we were looking for nice component for viewing images.
  • In our app we had upload indicator etc. built into our image viewer, so this component we released is pretty much built from the scratch to make it bit simpler and also to make it bit more customizable so it hopefully fits better for other peoples needs too.
  • Package includes Slide, SlideZoom, RotateY and Stack animations.
  • index=0 means that image is active and you can use those parameters to define enter/exit animations for your items as you like.
  • Here’s example of normal slide animation, but other animations are pretty much the same too.

Content Swiper component for React Native is out now
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How to write a HOC (in 3 easy steps).

Simplest definition of HOC in #reactjs  #javascript #hoc #highordercomponent

  • If you find yourself doing this a lot, you should look for ways to reuse code and solutions that are similar.
  • When it mounts, it fires an xhr request to fetch a user’s details, and then displays them: – – Let’s design another similar component for fetching and displaying a list of tweets.
  • This one will do the same thing: when it mounts, it fires an xhr request to fetch some tweets, and then displays them: – – These two components are very similar; they fetch some data, and then display it, showing a ‘loading’ view while the request is loading.
  • Let’s take the common elements, and put them into a function: – – Now that we have the similar code in a function, let’s make the different code (the url and view) parameters of that function: – – (Notice how we pass the data down to the view).
  • Now, let’s re-implement our two components using this shiny new HOC: – – We’ve cut out a ton of our code duplication, making our solutions simpler and easier to manage.

Learn how to write a Higher Order Component for React in 3 easy steps.
Continue reading “How to write a HOC (in 3 easy steps).”

Why You Should Consider ReactJS for Your Web Application?

Here's Why You Should Consider #ReactJS for Your #Web Application.

  • Yes, we are talking about ReactJS – the JavaScript library which is the hot favorite of developers and is climbing the popularity charts every day.
  • Managing system updates is very easy with ReactJS because every change does not necessarily affect each component in the system.
  • Developers using ReactJS have free access to a variety of useful applications and tools from the community at large.
  • Apart from these, there are numerous other examples such as Uber, Salesforce, KISSmetrics, Tesla, Scribd, Reddit, Periscope and many more which have leveraged the power of ReactJS to build world-class interactive web applications.
  • If you are looking to develop SEO-friendly, interactive web applications with great UI and expect your application to handle heavy traffic, it’s time to migrate to ReactJS.

According to the 2016 StackOverflow developer survey, React.Js’s popularity had recently increased by over 300%.What is making ReactJS so popular? Let’s take a look why you should consider ReactJS for your web application?
Continue reading “Why You Should Consider ReactJS for Your Web Application?”

Best Practice: How I structure my React/ Redux projects

  • But when developing larger projects one have to think about a good structure of components and code artifacts.
  • When it comes to sharing components and (redux-)logic between several project a good composition is keen.
  • The initial project structure created by React Create App looks as follows: – – When you start introducing Redux you also need places for the typical redux artifacts: the store, reducers, epics and actions.
  • contains the reducers which may change the store’s state based on the actions of this component: { } ; { } ; ({ value , output Enter your name and press submit! })
  • For this reason my components always also include a set of actions, epics and reducers: – – includes a plain react component which is wrapped by within : – – These component redux structures may also be with multiple levels, just like the usual ones mentioned above.

When developing frontends I personally love to work with React and Redux due to its functional paradigms: You can easily develop, compose and test web components – Wondeful. But when developing larger projects one have to think about a good structure of components and code artifacts. When it comes to sharing components and (redux-)logic between several project a good composition is keen.
Continue reading “Best Practice: How I structure my React/ Redux projects”

Why do we need to understand the ReactJs life cycle methods?

Why do we need to understand the ReactJs life cycle methods?  #javascript

  • When you build an application in ReactJs you will have to split the UI into reusable components and think about each of them in isolation.When the user interacts with our application in ReactJs, for example, by hovering, pressing a key, clicking… These actions trigger many other events on the UI…
  • So, why is understanding lifecycle methods so important?Let’s imagine that you are building an application in ReactJs, for example, a video player app, like Vimeo, Twitch or Youtube .
  • Now, your user is using the player app on his/her laptop and decides to search for a fun video to watch, found the video, and then selected to watch it.Let’s suppose that the player app is consuming only resources like network data and the battery power.After some time watching videos…
  • When we build an application in ReactJs , we can predict different type of actions by the user, placing some hooks and triggers.These triggers and hooks are available by component lifecycle methods in Reactjs.
  • They will help us to create the most efficient piece of the software as possible.To place correctly the hook methods into the components we need to learn more about the four stages of ReactJs component.The ReactJs component goes through the Four following is a little diagram to demonstrate those phases.InitializationIn…

Components are the core of ReactJs. When you build an application in ReactJs you will have to split the UI into reusable components and think about each of them in isolation. When the user interacts…
Continue reading “Why do we need to understand the ReactJs life cycle methods?”

Create actions with redux-tide it’s simple! #redux #reactjs #Redux #React

Create actions with redux-tide it's simple!

#redux #reactjs #Redux #React

  • You don’t need to create reducers for rest-api data – – You should create reducers only for business front-end logic – – Redux-Tide – Do not force you to use only it, – – This is a small library helping you create normalization, actions, reducers and selector – – You…
  • js example from Usage section – – When you need to force a clear state of action, please use – – Please read Create one action for different entity id section and Other options to create an action – – And look examples: – – different-entity-id-example – – different-entity-id-source -…
  • () action id if you called where postId === 5 .
  • { post with id 5 is was deleted success } } we used action delPostById with prefix postId so, actionId has postId in actionId and if you want track all calls with any postId you hould used parentActionId property parentActionId – it’s actionId from action which was called .
  • () } } } – – For details you can look example: – – different-entity-id-example – – methods returns same action – – But generate new uniq dispatch type and new uniq action state – – You should be call , , when you are dispatch event and use getActionData…

redux-tide – Simple library for redux crud normalized state and actions/selectors for it
Continue reading “Create actions with redux-tide it’s simple!

#redux #reactjs #Redux #React”

Understanding higher-order components

  • Why use HOC: Promote reuse of logic across React components.
  • How to use HOC: The core structure of a HOC is a function that takes a component and returns a new component.
  • HOC are pure functions with no side-effects because the component passed in, is wrapped in a new component.
  • The HOC looks like this: – – State now has a property to inject data from the API fetch into the wrapped component via the prop.
  • React Redux connect has a different function signature of a function returning a function which accepts one argument (ie, ‘component’) to create a HOC.

Understand why and how to use higher-order components with React JS

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Why You Should Consider ReactJS for Your Web Application?

Here's Why You Should Consider #ReactJS for Your #WebApplication.

#Programming

  • Yes, we are talking about ReactJS – the JavaScript library which is the hot favorite of developers and is climbing the popularity charts every day.
  • Managing system updates is very easy with ReactJS because every change does not necessarily affect each component in the system.
  • Developers using ReactJS have free access to a variety of useful applications and tools from the community at large.
  • Apart from these, there are numerous other examples such as Uber, Salesforce, KISSmetrics, Tesla, Scribd, Reddit, Periscope and many more which have leveraged the power of ReactJS to build world-class interactive web applications.
  • If you are looking to develop SEO-friendly, interactive web applications with great UI and expect your application to handle heavy traffic, it’s time to migrate to ReactJS.

According to the 2016 StackOverflow developer survey, React.Js’s popularity had recently increased by over 300%.What is making ReactJS so popular? Let’s take a look why you should consider ReactJS for your web application?
Continue reading “Why You Should Consider ReactJS for Your Web Application?”