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Introduction Firebase Firebase is a product of Google that helps developers build, manage, and grow their apps easily. It’s designed to make app development faster and more secure. In this article, I'll guide you through deploying a ReactJS application on Firebase . Google provides Firebase hosting for free, offering stable speed and SSL certificates, making it ideal for creating HTTPS-supported websites. Creating a React Application Firstly, you need to create a React Application project or use an existing one. You can use tools like vite , create-react-app , or Nx/Nrwl . The project initialization process is straightforward and can be easily found. Here, I'll use Nx, a build system that provides various tools for developing projects in multiple programming languages. You can learn more about Nx/React here . After successfully initializing and running the React application, the result should look like this: Next, let's proceed to build the React application. If you

Introduction PureComponent in React is built on the concept of Pure Function. In this article, let's dive into PureComponent and the memo hook in React, as well as how to apply these tools to improve performance in React applications. What is a Pure Function? First off, it's important to understand the concept of a Pure Function, which will always return the same result with the same input parameters. To put it simply, the same input will always yield the same output. For example: // this is pure function function sum ( a : number , b : number ): number { return a + b ; } sum ( 1 , 2 ); // always return 3 const offset = 3 ; // this is not pure function function sumWithOffset ( a : number , b : number ): number { return a + b + offset ; } sum ( 1 , 2 ); // result depend on offset value What is a Pure Component? In React, a PureComponent is considered a component that only renders when there's a change in props or state, where the change in props or state is det

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Introduction As most of us already know, React enables us to break down interfaces into independent parts called Components, facilitating reuse and customization. Currently, React Components are divided into two main types: Client Components : widely used in Client Side Rendering (CSR) applications. Server Components : a new type of component that renders on the server side before being sent to the client (browser). At first glance, it may seem similar to Server Side Rendering (SSR) which has been used for a while, but in reality, these two concepts have certain differences. The Difference of RSC (React Server Component) Ease of development: React Server Component allows easy direct connection to server-side resources such as databases or internal services, streamlining development processes. Improved performance: By reducing latency in communication between client and server, React Server Component enhances overall application performance. Reduced source code size: Libraries utili

Introduction When it comes to styling your React application with a css-in-js approach, styled-components stands out as a top choice. In this post, I'll walk you through how to utilize styled-components in a Next application. By default, Next provides a way to use  css-in-js  through styled-jsx. However, if you find styled-jsx cumbersome because it requires writing CSS within JSX , which can make your components lengthier, then styled-components might be the right fit for you. Installation of styled-components npm install styled-components // or yarn add styled-components Example usage: import styled from 'styled-components' const Wrapper = styled . div ` color: red; text-align: center; ` // Component with input param const Wrapper2 = styled . div <{ $color ?: string }> ` color: ${ props => props . $color } ; text-align: center; ` export default function Index () { return ( <> < Wrapper > Demo 1 </ Wrapper >

Introduction You might have heard or seen others mention the react-query library quite often. Why should we use react-query when we can use useEffect to fetch data from an API ? This article will answer that question. What is react-query? react-query is a set of hooks for fetching, caching, and updating asynchronous data in React . Simply put, react-query is a library for fetching , caching , and updating asynchronous data when used in React . Why should we use react-query? Normally, there are many ways to fetch data from a server. Some popular methods include using useEffect and useState , or using a state management library like redux . export const Page = () => { const [ data , setData ] = useState (); useEffect (() => { const loadData = async () => { const response = await fetch ( hostAPI ). then ( response => response . json ()); setData ( response ) } loadData () }) return < DisplayData /> } This me