<h2 style="margin-left:0px;text-align:justify;">Top 6 React Design Patterns in 2023</h2>There are various design patterns in React, but we have picked the most popular ones based on their features, functionality, and demand in the developer community. Below is the list of 6 best React design patterns:<h3 style="margin-left:0px;">1. High Order Components</h3>The High Order Components (HOC) is a reusable logic within the React components. This popular React design pattern allows your development team to add functionality or features in your React application without changing their original code.For instance, you have an “Apply now” button in your React application; you want to add color when someone clicks “Apply now.” With HOC, you can add a new color without modifying the original component.Additionally, HOC helps to keep your code organized and avoid code duplication. In a nutshell, leveraging HOC in your React application development leads to scalable and agile software products.Code Structure of High Order Components:<pre><code class="language-javascript">import React, { Component } from "react";
const HigherOrderComponent = (DecoratedComponent) =&gt; {
class HOC extends Component {
render() {
return &lt;DecoratedComponent /&gt;;
}
}
return HOC;
};</code></pre>Real-life Use Cases:<ul><li style="text-align:justify;">Twitter uses HOC to handle user authentication and authorization.</li><li style="text-align:justify;">Dropbox utilizes HOC for managing file management and sharing functionalities.</li><li style="text-align:justify;">Reddit relies on HOC to manage user interactions and content filtering.</li></ul><h3 style="margin-left:0px;text-align:justify;">2. Presentational and Container Components</h3>The presentational and container components represent a design pattern approach that helps separate concerns and responsibilities in React applications.Presentational components are focused on how a user interface looks and feels. The presentational components receive data and callbacks through props.On the other hand, container components handle tasks like fetching data from servers, managing changes in data, and <a href="https://www.bacancytechnology.com/blog/react-state-management">state management in React applications</a>. Container components ensure that things are working well in the backend.In addition, a clear separation between presentational and container components can help to identify and rectify errors, which helps to reduce the application’s downtime.Code Structure of Presentational and Container Components:<pre><code class="language-javascript">import React, { Component } from 'react';
import PresentationalComponent from './PresentationalComponent';

class ContainerComponent extends Component {
 constructor(props) {
 super(props);
 this.state = {
 // Initialize state
 };
 }

 componentDidMount() {
 // Fetch data or perform initialization logic
 }

 handleEvent = () =&gt; {
 // Handle events and update state if needed
 };

 render() {
 return (
 &lt;div&gt;
 {/* Any other JSX */}
 &lt;PresentationalComponent
 prop1={this.state.data}
 prop2="Some value"
 onClick={this.handleEvent}
 /&gt;
 &lt;/div&gt;
 );
 }
}
export default ContainerComponent;</code></pre>Real-life Use Cases:<ul><li style="text-align:justify;">Facebook employs a state reducer pattern to manage complex interactions within the application.</li><li style="text-align:justify;">Reddit uses a state reducer pattern for handling user interactions in their comment sections.</li><li style="text-align:justify;">Uber employs a state reducer pattern to manage user’s ride requests and bookings.</li></ul><h3 style="margin-left:0px;text-align:justify;">3. Provider Pattern</h3>As the name suggests, the Provider pattern in React is a software design pattern that shares information with other application parts. For instance, if your website or application requires you to share data like user information, the provider pattern will help you to share that data with the concerned and compliant sections of the application.In other words, it is the global store for your application’s data. As a result, it helps you to keep every information, such as business information, user preferences, or any other crucial data, in one centralized place.&nbsp;<pre><code class="language-javascript">import React, { createContext} from 'react';

// Create a context
const UserContext = createContext({});

function ChildComponent() {
 return (
 &lt;UserContext.Consumer&gt;
 {({ name }) =&gt; (
 &lt;p&gt;Hello, {name}&lt;/p&gt;
 )}
 &lt;/UserContext.Consumer&gt;
 );
}

 function ParentComponent() {
 const name = 'Alex';
 const value = { name };

 return (
 &lt;UserContext.Provider value={value}&gt;
 &lt;ChildComponent /&gt;
 &lt;/UserContext.Provider&gt;
 )
}</code></pre>Real-life Use Cases:<ul><li style="text-align:justify;">Facebook uses Provider pattern to manage various global state variables across its React applications.</li><li style="text-align:justify;">Twitter utilizes Provider pattern data related to user profiles, tweets, and interactions.</li><li style="text-align:justify;">Airbnb uses Provider pattern for booking and reservation-related data.</li></ul><h3 style="margin-left:0px;text-align:justify;">4. Compound Component Pattern</h3>The compound component pattern enables your development team to create a group of components that work harmoniously for designing the app’s user interface. It is like puzzle pieces, where each component has a particular role, and when you fit them all together, you get a cohesive user interface. Here are some top <a href="https://www.bacancytechnology.com/blog/top-react-ui-component-libraries-and-frameworks">React UI Component and Libraries</a> you can consider working with.As a result, the user-friendly interface increases user interaction time with your application. Additionally, compound component patterns can be summarized as parent and child components.The parent and child components work together to create a complete and functional application. The parent component organizes and handles the child components, and they communicate with each other to make the app perform smoothly.Code Structure of Compound Component Pattern:<pre><code class="language-javascript">import React from 'react';
import CompoundComponentParent from './CompoundComponentParent';
import { CompoundComponentA, CompoundComponentB } from './CompoundComponents';

const App = () =&gt; {
 return (
 &lt;CompoundComponentParent&gt;
 &lt;CompoundComponentA propA="Value for A" /&gt;
 &lt;CompoundComponentB propB="Value for B" /&gt;
 &lt;/CompoundComponentParent&gt;
 );
};

export default App;</code></pre>Real-life Use Cases:<ul><li style="text-align:justify;">Netflix uses the compound component pattern to build flexible and interactive components.</li><li style="text-align:justify;">Yelp leverages it to create complex components for displaying reviews.</li><li style="text-align:justify;">GitHub uses compound component pattern to build collaborative components for handling code repositories.</li></ul><h3 style="margin-left:0px;text-align:justify;">5. React Hooks Components</h3>The latest version of the React 16.8 has changed and transformed how React components are written. React has introduced a set of tools known as “hooks.” These hooks empower your app’s components to address tasks like state management and fetching new information.In React hooks components, useState hook handles data updates, useEffect hook reminds you about the changes, and UseContext hook shares information among different application parts.Also, by utilizing React hooks components, your development team can adapt and integrate modern features, which results in higher-quality applications and enhanced user experience.Code Structure of React Hooks Components:<pre><code class="language-javascript">import React from 'react';
import MyHooksComponent from './MyHooksComponent';

const App = () =&gt; {
 return (
 &lt;div&gt;
 &lt;h1&gt;React Hooks Example&lt;/h1&gt;
 &lt;MyHooksComponent /&gt;
 &lt;/div&gt;
 );
};

export default App;</code></pre>Real-life Use Cases:<ul><li style="text-align:justify;">Facebook relies on React hooks to improve its component logic and state management.</li><li style="text-align:justify;">Uber utilizes React hooks to develop dynamic and interactive features in app.</li><li style="text-align:justify;">Spotify leverages the React hooks component to manage the playback functionality of its application.</li></ul><h3 style="margin-left:0px;text-align:justify;">6. Conditional Rendering Design Pattern</h3>The conditional rendering design pattern displays different content based on certain conditions or states in your React js app. For instance, there are three users- paid, unpaid, and admin. With this pattern, you can modify user interfaces depending on their roles and show different displays to all three.Conditional rendering is beneficial when your app wants to show relevant content to different users based on their actions, roles, and preferences. In a nutshell, React design pattern helps you develop a user-focused and efficient app, improving personalization and user engagement.Code Structure of Conditional Rendering Design Pattern:<pre><code class="language-javascript">if (condition) {
 // Code to render/display when condition is true
} else {
 // Code to render/display when condition is false
}</code></pre>Real-life Use Cases:<ul><li style="text-align:justify;">Netflix leverages conditional rendering design pattern to customize user interfaces based on subscription plans and preferences.</li><li style="text-align:justify;">Facebook utilizes conditional rendering design pattern to display or hide certain elements based on user interactions.</li><li style="text-align:justify;">Dropbox uses a conditional rendering design pattern to display different views or options depending on the user’s file-sharing settings.</li></ul>

small_title-image.png

thumbnail_title-image.png

title-image.png

Design Patterns are the pre-built templates that help create websites and mobile applications efficiently. In simple terms, design patterns are the proven solutions to resolve common application problems and development challenges.

What are React Design Patterns?

<h2 style="margin-left:0px;text-align:justify;">What is React Rendering?</h2>Since React builds enticing user interfaces, it happens due to the transformation of React components into JavaScript, CSS, and HTML that displays on your web page or mobile application.Here is a detailed process of how React Rendering works:<h3 style="margin-left:0px;text-align:justify;">It Starts With Component Rendering</h3>React, upon component rendering, creates a virtual representation of the component, aka virtual DOM (VDOM). VDOM is a lightweight structure of the original DOM (Document Object Model); however, it still represents the structure and content of the web page.<h3 style="margin-left:0px;text-align:justify;">Then Comes Updating Components</h3>Now if the component is updated, React ensures a comparison between the updated and the previous Virtual DOM to list down the modifications to be made in the actual DOM. Doing so would eliminate the process of updating the entire page and only allow you to make changes to a particular part.<h3 style="margin-left:0px;text-align:justify;">Ends React Rendering Strategies</h3>Several React render strategies enable how and when components are rendered. These strategies are client-side, server-side, and static site generation rendering. We will discuss these rendering strategies of React in the next section.<h2 style="margin-left:0px;text-align:justify;">Types of React js Rendering</h2>React rendering depends on different strategies. We have shared the names in the above section. Now, let’s understand the nitty-gritty of these strategies in detail.<h3 style="margin-left:0px;text-align:justify;">Server-Side Rendering (SSR)</h3>The server-side rendering is where the user doesn’t have to be involved in many manual tasks. This rendering process by React ensures generating of all the HTML, CSS, and Javascript on the server and then sending them to the client side.The rendering process helps in saving time and making tasks more efficient than ever. Because the process eliminates the process of downloading, parsing, and rendering Javascript code to run the command, using SSR would benefit you from the SEO perspective since it enables easy crawling of the page content.<h3 style="margin-left:0px;text-align:justify;">Client-Side Rendering (CSR)</h3>Another rendering process by React is quite the inverse of server-side rendering. Here, the rendering process occurs on the client rather than the server. It happens in web development wherein the web server requests only a minimum of HTML, CSS, or Javascript to render the web page.When the browser receives the data, it starts leveraging Javascript to create and display a web page on the user’s screen. It develops and enhances the user experience by enabling them to interact with the web page elements without refreshing the entire page. The only downfall of this rendering strategy is that it takes time when loading initially since the browser downloads and processes all the Javascript and CSS.<h3 style="margin-left:0px;text-align:justify;">Static Site Generation</h3>A static site is the process of proactive website creation and then sending the already created HTML, JavaScript, and CSS files to the user’s browser, keeping them as a static asset. It also means that all the content and structure of the website are pre-rendered and stored, marking it as static assets. And it would be delivered to users quickly as and when required.Those websites that do not require updates can leverage static site generation. It includes blogs and small business websites. Static-side generated websites are far better than client or server-side rendered websites.

large_Types-of-React-js-Rendering.webp

medium_Types-of-React-js-Rendering.webp

small_Types-of-React-js-Rendering.webp

thumbnail_Types-of-React-js-Rendering.webp

Types-of-React-js-Rendering.webp

Bringing you the most efficient and declarative approach focused on React Rendering that makes page loading time lighting fast and lag-free.

React Rendering: Anything & Everything to Know About

&nbsp;<h3 style="margin-left:0px;text-align:justify;">1. Windowing or List Virtualization in React Applications</h3>Many React applications having or displaying long lists usually bear performance issues. Before loading the app, the entire list will be rendered in the DOM, causing a UI lag and drastically affecting the React.js app performance.One way of overcoming this bottleneck is by List Virtualization or Windowing. Here, instead of rendering the complete long list of components on the app screen, we allow only a restricted list of items to be rendered on the DOM as much is visible.The two libraries available for windowing are react-window and react-virtualized; you will enable rendering a small subset of the extensive list on the app screen. Your <a href="https://www.bacancytechnology.com/blog/dockerize-react-app">react app</a> performance will improvise.<h3 style="margin-left:0px;text-align:justify;">2. Key Coordination for List Rendering</h3>When working with lists in React, you can assign key attributes to an element that will help render the upcoming ist items.In the case of dynamic lists, if the developer has wrongly assigned component keys to list elements, it becomes useful for the user, making it a performance hindrance for React app. Here, the new list entry will automatically suggest the previous list entry, which is unnecessary.You must assign a unique key value to your list component to solve this bottleneck. Thus, use Key={ } for your dynamic lists to boost React app performance.<h3 style="margin-left:0px;text-align:justify;">3. Lazy loading Images in React</h3>When your React application contains many images, there are high chances that your React app performance will degrade. It happens because the DOM will render all images altogether before displaying the user screen. Hence we suggest using Lazy loading images, which will wait until the turn of the image appears on the user screen and only render that particular image.Lazy loading images prevents creating unnecessary DOM nodes, just like we discussed for windowing. The popular libraries used for lazy loading to boost React performance are <a href="https://github.com/twobin/react-lazyload">react-lazyload</a> and <a href="https://github.com/Aljullu/react-lazy-load-image-component">react-lazy-load-image-component</a>.<h3 style="margin-left:0px;text-align:justify;">4. Functional Components &amp; Component Interaction</h3>The subtle way of optimizing performance of React applications is by using functional components. Though it sounds cliche, it is the most straightforward and proven tactic to build efficient and performant React applications speedily.Our React experts have some advice when using Components.Some advantages of using React components like React Devtools (extension) are<ul style="list-style-type:disc;"><li style="text-align:justify;">Require less code,</li><li style="text-align:justify;">Easy to understand,</li><li style="text-align:justify;">Components are stateless,</li><li style="text-align:justify;">Easy to test,</li><li style="text-align:justify;">Flexibility to extract smaller components, and Interactibility</li></ul><h3 style="margin-left:0px;text-align:justify;">5. Understand How to Handle ‘this’</h3>Functional components do not require ‘this’ binding, you might wish to use them whenever possible. But, if you are using ES6 binding, React will not auto-bind your functions within components. However, you may manually achieve the binding. Here are some ways to bind your components and functions:<ul><li style="text-align:justify;">Bind in render</li><li style="text-align:justify;">Allow arrow function in render</li><li style="text-align:justify;">Bind in constructor</li><li style="text-align:justify;">Bind arrow function in the class property [Not in official ECMAscript]</li></ul><h3 style="margin-left:0px;text-align:justify;">6. Use a Function in ‘SetState’</h3>We recommend using a function and not an object in the setState function. This suggestion is because state changes aren’t implied immediately, as conveyed by React docs. Thus, instead of this:&nbsp;<pre><code class="language-diff">this.setState({correctData: !this.state.correctData});</code></pre>&nbsp;Use this way:<pre><code class="language-diff">this.setState((prevState, props) =&gt; {
 return {correctData: !prevState.correctData});
 }</code></pre>&nbsp;The above function will receive the previous state as its first argument, and the props at the time the update is applied, as teh second argument.<h3 style="margin-left:0px;text-align:justify;">7. Utilize Prop-Types</h3>Prop-types is a library for type checking of props. The below code snippet shows how you can import the function from the prop-type library:<pre><code class="language-html">import PropTypes from 'prop-types';

class Welcome extends Component { 
 render() {
 return &lt;h1&gt;Hello, {this.props.name}&lt;/h1&gt;;
 }
 }

 Welcome.propTypes = {
 name: PropTypes.string.isRequired
 }</code></pre>&nbsp;&nbsp;

small_react-security-vulnerabilities-main.jpg

thumbnail_react-security-vulnerabilities-main.jpg

react-security-vulnerabilities-main.jpg

There are fine React performance optimization techniques which we recommend to overcome the costly DOM operations. Find out how.

Our Blogs,
we’re here to change the world

Our Blogs

React Rendering: Anything & Everything to Know About

7 Proven Ways to Improve & Boost React Performance

Get latest From Scriptus Solution

Take a step towards success & Get your project going

Our Blogs, we’re here to change the world

Our Blogs

React Rendering: Anything & Everything to Know About

7 Proven Ways to Improve & Boost React Performance

Get latest From Scriptus Solution

Take a step towards success & Get your project going

Our Blogs,
we’re here to change the world