A visual guide to React Native Performance: Issues and resolving Insights

A visual guide to #reactnative Performance: Issues and resolving Insights

  • A visual guide to React Native Performance: Issues and resolving InsightsFor anyone who is coming from Cordava/Ionic development background, React Native would blow your mind with its easy code sharing, UI advantages, and faster time to market.React Native not only decreases the burden of engineering(as Java/Objective is hard to master),…
  • It is no surprise that Garbage collector does it job, but, due to a bridge between the Native and React Native realm, most components go unnoticed.Credit: GithubEven simpler utility applications such as a hybrid camera app we tested was found to be leaking huge memory.Memory leaks are usually common with…
  • In the screenshot above, you can see that the app size was increased 4x times when it was built using React native.Note: Both of them had exactly the same features, still app size was 4x more in React native.App size drastically impacts — how an application renders its UI components, and allocate the…
  • Read here to see app navigation performance issues with react native and how you can improve them.Infinite scrolling in React NativeMediumLiterally!
  • With best practices, and some lesser known optimisation techniques, you can improve the performance.Aside from what we discussed above, there are so many other performance bottlenecks that you must know before deploying your application.If I had to list few other common issues, they would be:Animating images for different UI viewLack…

For anyone who is coming from Cordava/Ionic development background, React Native would blow your mind with its easy code sharing, UI advantages, and faster time to market. React Native not only…
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A tiny ~700b centralized state container with component bindings for Preact. #reactjs #preact

  • { , , } store ({ count }) If actions is a function, it gets passed the store: ({ ( ) { { count . } }
  • , The above example as an Arrow Function: ({ count }) ({ count count }), ( ) { res ( ) { stuff .
  • , ) } }) ( , actions)( ({ count, increment }) ( div p Count {count} p button onClick {increment} Increment button div ) ) () ( Provider store {store} App Provider ) – – Creates a new store, which is a tiny evented state container.
  • Register a listener function to be called whenever state is changed.
  • If don’t, just open a new clear and descriptive issue.

unistore – 🌶 700b state container with component actions for Preact
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#reactjs #preact”

Container Components and Stateless Functional Components in React – Zsolt Nagy

  • Let’s introduce functional components: – – has become a function with a argument, returning the return value of the method of the original implementation.
  • Implications of the structure of stateless functional components: – – In the introduction, I mentioned that stateless functional components come with performance benefits.
  • Typically, container components have the following properties: – – The rule of thumb for choosing the appropriate syntax for React components is the following: – – then it is advised to use stateless functional components.
  • Let’s put theory into practice, and transform all the stateless component in our chat application into functional components.
  • Reviewing the conditions for modeling a component with a function, we can see that there is absolutely nothing preventing us from creating a functional equivalent of the class.

We will now introduce another way to define simple components. You will not only write less code, but you will also benefit from performance optimizations done by React. Let’s introduce functional components:
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Interview of @matheusml about #redux zero, a light state management solution for #reactjs

  • Redux Zero is a library which offers a simple way to handle state in modern applications.
  • With Redux Zero your component can focus 100% on the UI and just call the actions to update the state: – – Last but not least, plug the whole thing in your index file: – – Redux is great, but in some cases, it’s way too much.
  • With Redux Zero you just have a store and some actions.
  • One of our developers here at Concrete, Miguel Albernaz, was using this gist as a state management solution instead of Redux.
  • Redux Zero is one of the lightest state management solutions I’ve seen so far.

Although using Redux is straight-forward once you understand the approach and its nuances, after a while it gets repetitive. It’s easy to end up with a lot of “boilerplate” code that wires all the logic together. For this reason, multiple solutions addressing the issue have appeared.
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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
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7 Best Javascript Frameworks 2017 For Web Developers

  • Node.js provides server-side scripting feature as javascript Frameworks to runs server-side scripts to produce dynamic web page content.
  • Angular JS 2 stand among the most popular Javascript frameworks which is used by many developers to build and maintain complex web applications.
  • It contains different functionalities similar to other javaScript frameworks contains  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 for 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.
  • Hence, Many JavaScript frameworks offer innovative features to manage complexity in web applications with an integrated development toolkit that enables rapid iteration.

JavaScript is a scripting language used in web development to add dynamic and interactive elements to the websites using various Javascript Frameworks
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Learning React.js: Getting Started and Concepts ― Scotch

  • — React Code Goes Here — – – /script – /body – /html – In React, components mount to an element, so in this example we can use the div myDiv as it’s parent container.
  • These attributes are available in our component as this.props and can be used in our render method to render dynamic data: – var MyComponent = React.createClass({ – render: function(){ – return ( – h1Hello, {this.props.name}!
  • Below, see how we can set our component’s state: – var MyComponent = React.createClass({ – getInitialState: function(){ – return { – count: 5 – } – }, – render: function(){ – return ( – h1{this.state.count}/h1 – ) – } – }); – – Events – React also has a built…
  • Lets make our count increment below using events: – /** @jsx React.DOM */ – – var Counter = React.createClass({ – incrementCount: function(){ – this.setState({ – count: this.state.count + 1 – }); – }, – getInitialState: function(){ – return { – count: 0 – } – }, – render: function(){ -…
  • == -1; – }); – this.setState({items: updatedList}); – }, – getInitialState: function(){ – return { – initialItems: [ – “Apples”, – “Broccoli”, – “Chicken”, – “Duck”, – “Eggs”, – “Fish”, – “Granola”, – “Hash Browns” – ], – items: [] – } – }, – componentWillMount: function(){ – this.setState({items: this.state.initialItems})…

Today we are going to kick off the first installment in a new series of tutorials, Learning React, that will focus on becoming proficient and effective with Facebook’s React library. Before we start building anything meaningful, its important that we cover some base concepts first, so lets get this party started.
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