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Introduction

React is a library that is highly popular because of its features and functionalities provided for developing web and mobile apps. Its simplicity and flexibility allow developers to build applications quickly and it is estimated that more than 1300 developers and 90,000+ sites utilize ReactJS. You can create large web apps that can change data without reloading the page repetitively. It is used for handling the view layer and creating reusable UI components.

React has evolved quite a lot in recent years, and has several modern and new features introduced. If you’re planning to build a ReactJS application, then you’re reading the perfect blog where we’re going to discuss the top React practices to adapt in 2021. So, let’s get started!

React JS Best Practices to Learn and Adapt in 2021

Use Higher Order Functions

In React, one of the best ways to achieve the DRY principle that is Don’t Repeat Yourself across components is to make use of the Higher-Order Component concept. You can use the same functionality without writing code using HOCs. The higher-order component is important for each function that takes in a component as an argument and then it returns a new component. It also renders the original component that was passed to it as an argument.

function myHOC (myOtherComponent) {

return class extends React.Component {

render() {

return <myOtherComponent {…this.props}/>

}

Source

HOC allows you to abstract your code and get a hang of it using this pattern too often. You can always follow DRY principles even without implementing HOCs.

Use Ternary Operator

Let’s say you want to show a particular user’s details based on their role.

Bad:

const { role } = user;

if(role === ADMIN) {

return <AdminUser />

}else{

return <NormalUser />

}

Good:

const { role } = user;

return role === ADMIN ? <AdminUser /> : <NormalUser />

Source

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