How to create a react component library? (2023)


The beautiful thing about react is that it lets you break down UI into smaller components and reuse them at multiple places in your project, but that's not it, you can standardize your components and publish them to npm or yarn and let other people use your components in their projects.

In this post, I'll show you how you can create a component library for reactJS using Typescript, Storybook, SCSS, and Rollup.

It's not necessary to create a big library, you can create a library for a single component such as a Date Picker or you can create a full-fledged library like material UI.

A UI component library is very essential for organizations to maintain a consistent UI across different projects. However, you do not need to create a component library just for a single project as all components can be maintained in that particular project but if you work on multiple side projects and have similar components that you copy-paste from one project to another then it is better to create a library for those components.

So let's get started with our library

Setting up the library

Getting Started

Before starting this project make sure you have node js and npm installed globally in your system. If not, you can download node from here

Create a folder and name it whatever you want, but for the sake of this article let's name this folder react-lib, and if you are planning to publish this library to npm then check if the package name is available on npm registry

Open Terminal and navigate to your project directory and run

npm init -y

This initializes a node project in the current directory. The -y flag when passed to the NPM command tells the generator to use the defaults instead of asking questions, and a file package.json is created at the root of your directory

How to create a react component library? (1)

React & React DOM

Let's install react and react-dom as dev dependencies

 npm i -D react react-dom

We are creating this library for reactJS so it is required that a project that uses this library must have react and react-dom as dependencies so let's add react and react-dom as peer dependencies in our package.json file.

How to create a react component library? (2)

Basic Folder Structure

Before adding storybook and typescript and moving further let's create a basic folder structure for our project. You can have any folder structure that you prefer.

(Video) Build And Publish A React Component Library

How to create a react component library? (3)

Installing Typescript

First, install typescript globally in your system with the following command

npm i typescript -g

Then install typescript and @types/react as a dev dependency in your project.

npm i -D typescript @types/react

Then create a tsconfig.json file using the following command.

tsc --init

This file will allow you to configure further and customize how Typescript and tsc compiler interact.

Open tsconfig.json and change the following configuration.

..."compilerOptions" : { ... "jsx": "react", ... "module": "es6", ... "moduleResolution": "node", .... "outDir": "./dist", .... }....

Getting Storybook

Storybook is an open-source tool for building UI components and pages in isolation. It streamlines UI development, testing, and documentation. It works with a javascript library such as React, Vue, Angular, etc.

To install the storybook in our library run this command:

npx sb init

You should now be able to run Storybook locally by running npm run storybook or if you prefer yarn storybook.

Here is a preview of the Storybook application:

How to create a react component library? (4)

Making sense of the folder structure

npx sb init generates some files and folders let's take a look at them

How to create a react component library? (5)

The stories folder

Storybook is smart enough and detects that the project uses Typescript and React so it creates some example components and documentation pages inside the stories folder in src. You can go ahead and remove everything from this folder but I recommend taking a peek inside to explore a little.

(Video) How to Create and Publish a React Component Library

  • Introduction.stories.mdx contains the documentation used to generate the Introduction page in the storybook preview above. Files with .mdx extension are written using MDX which is an amalgamation of JSX and Markdown. It helps to write component stories alongside their documentation at the same place.

  • All files like <ComponentName>.tsx are the react components created with typescript and files like <ComponentName>.stories.tsx is used to preview the stories in the storybook and helps us to develop component in isolation

The .storybook folder

Contains files for customizing Storybook:

  • main.js defines the file pattern used by Storybook to determine what to include in the showcase application. By default, Storybook uses files containing .stories in their name.
"stories": [ "../src/**/*.stories.mdx", "../src/**/*.stories.@(js|jsx|ts|tsx)" ]

Addons for the Storybook application are also defined in main.js.

"addons": [ "@storybook/addon-links", "@storybook/addon-essentials" ]
  • preview.js configures how actions and controls will show up depending on the prop's name. By default, props such as onClick, onSubmit that start with on are automatically interpreted by Storybook as actions, so when triggered, they get logged inside Storybook's Actions addon. Besides, props suffixed with background and color will show a color picker control, whereas props suffixed with Date display a date picker control.
export const parameters = { actions: { argTypesRegex: "^on[A-Z].*" }, controls: { matchers: { color: /(background|color)$/i, date: /Date$/, }, },}
The package.json file

npx sb init command adds all dev dependencies needed by the storybook and it also adds the following scripts in the package.json file

 "scripts": { "storybook": "start-storybook -p 6006", "build-storybook": "build-storybook" }
  • npm run storybook starts a development server locally on your machine
  • npm build-storybook builds the static storybook application ready to be deployed

Adding SASS support

Storybook uses webpack to bundle all the code when we run storybook or build-storybook script.By default, Storybook does not come with sass support. In order to add sass to our library, we need to add some packages and extend the webpack config in .stoybook/main.js

Add the following dev dependencies for adding sass support

npm i -D sass style-loader css-loader sass-loader@10.2.0

Let's understand these dependencies

  • sass is a pure JavaScript implementation of Sass.
  • style-loader inject CSS into the DOM.
  • css-loader interprets @import and url() like import/require() and will resolve them.
  • sass-loader loads a Sass/SCSS file and compiles it to CSS. We are using a specific version because the latest version of sass-loader has a conflicting peer dependency issue with webpack that is used by the storybook internally.

To extend the webpack configuration lets add the following code in .storybook/main.js

const path = require("path");
.....addons: ["@storybook/addon-links", "@storybook/addon-essentials"],framework: "@storybook/react",webpackFinal: async (config, { configType }) => { // Make whatever fine-grained changes you need config.module.rules.push({ test: /\.scss$/, use: ["style-loader", "css-loader", "sass-loader"], include: path.resolve(__dirname, "../"), }); // Return the altered config return config; }....

With Sass support added, we are ready to build our components.

Creating our first component

Creating a button component

You can create any sort of component that you need to, but for the sake of this post let's create a Button component that can be reused.

Inside the components folder, create a file named Button.tsx .

First, we'll define the interface of the props that are required by the button.We start by importing react inside our file and our button props extends the HTML button element as we might pass different props like onClick or type that are native to the HTML button element.

import React from "react";export interface ButtonProps extends React.HTMLAttributes<HTMLButtonElement> { children: React.ReactNode; variant: "primary" | "danger"; shape?: "rounded";}

We are getting the following props

(Video) Build a Component Library for React with Typescript [2021]

  • children that will be rendered inside the button element.
  • variant : the variant of button i.e. primary or danger in this case.
  • we also have an optional shape prop.

Now Let's add our component

export const Button: React.FC<ButtonProps> = ({ children, variant, shape, ...props}) => { const classNames = `btn btn-${variant} btn-${shape}`; return ( <button className={classNames} {...props}> {children} </button> );};

Here we are returning an HTML button element from our function and we'll use the variant and shape prop to create different classNames and add them to our <button> element and we can target those particular classes from our SCSS to give different styles to our component.For example, btn is the base class and when we pass a variant then we'll have a class either btn-primary or btn-danger depending on the variant passed, and we can add styling to different variants.

Adding styles for Button component

Create a global.scss file inside the scss folder. You can choose a folder structure of your choice and put SCSS code in different files and import them in this global.scss file, but for the sake of simplicity let's add all our styles in the global.scss file.

/* base styling for our button */.btn { padding: 0.6rem 1rem; background: transparent; border: 1px solid #1e1e1e; cursor: pointer;}/* styling for our variants */.btn-primary { border: none; background-color: blue; color: white; &:hover { background-color: blue; }}.btn-danger { border: none; background-color: red; color: white; &:hover { background-color: red; }}/* styling for different shape*/.btn-rounded { border-radius: 0.4rem;}

Either the button will have a btn-primary class or a btn-danger along with other classes and the respective styles will take effect.

Now we have created our button and added some styles let's use this button and see how it looks in our storybook.

Creating the Button story in storybook

Before creating a story for our button let's import our SCSS so that it can be used. Open the preview.js file inside the .storybook folder and import the global.scss file inside it.

How to create a react component library? (6)

With our styles imported into the storybook let's create the Button Story.Open the stories folder and delete all the files that were generated automatically by the storybook for us inside this folder and create a Button.stories.tsx file and write the following code

import React from "react";import { Story } from "@storybook/react";import { Button, ButtonProps } from "../components/Button";export default { title: "Button", component: Button,};const Template: Story<ButtonProps> = args => <Button {...args} />;export const Primary = Template.bind({});Primary.args = { children: "Primary", variant: "primary",};export const Danger = Template.bind({});Danger.args = { children: "Danger", variant: "danger", shape: "rounded",};

Let's understand this code

We import our Button and ButtonProps from the Button.stories.tsx file and we start by exporting a default object that contains some metadata about this story like title and component. The title is the Actual Title of this story and inside the component, we have our Button component.

Then we create a Template function that takes some arguments and returns our button component.

const Template: Story<ButtonProps> = args => <Button {...args} />;

Now call Template.bind({}) for sort of creating a clone of our button template. This Template.bind({}) will return a function that we can store in a variable and export it. You can read more about .bind() here

export const Primary = Template.bind({});

Now set some args for our Primary button

Primary.args = { children: "Primary", variant: "primary",};

Now run the npm run storybook command to start a development server and you'll see the button components

(Video) Create a Private, Enterprise-Grade, Component Library using React with Senior Databricks Engineer

How to create a react component library? (7)

In the storybook's dev server, we have a control section that can be used to change props and see changes immediately or we can write more versions or variants of our button using Template.bind({}).

In this way, we can develop and test multiple components in isolation using the storybook.

Bundling using Rollup

Rollup is a good bundling tool, if we want to package the React component library and reuse it in other projects.

Rollup needs an entry point to generate the bundle. We have already created an index.ts file in the src folder which will serve as our entry point for Rollup.

Add the exports of the components in this index.ts file which will be used by others and also import the global.scss file here so we can create CSS bundle.

How to create a react component library? (8)

In order to build our library lets add the following dev dependencies.

npm i -D rollup @rollup/plugin-babel rollup-plugin-peer-deps-external rollup-plugin-scss rollup-plugin-terser @babel/preset-react @rollup/plugin-node-resolve @rollup/plugin-typescript

Let's understand these dependencies:

  • rollup gives the command-line interface (CLI) to bundle the library.
  • @rollup/plugin-babel allows us seamless integration between Rollup and existing Babel.
  • rollup-plugin-peer-deps-external prevents adding peer dependencies to the bundle because the consumer of the library is expected to have them. So we also get a smaller bundle size.
  • rollup-plugin-scss bundles scss files.
  • rollup-plugin-terser minify generated es bundle.
  • @babel/preset-react adds support for JSX.
  • @rollup/plugin-node-resolve helps resolve third-party modules in case you are using any third-party dependencies. If you use any third-party dependency it is going to resolve them and add them to the source code.
  • @rollup/plugin-typescript transpiles TypeScript files to JavaScript.

Next, we create a rollup.config.js file and add the following contents.

import { babel } from "@rollup/plugin-babel";import external from "rollup-plugin-peer-deps-external";import resolve from "@rollup/plugin-node-resolve";import scss from "rollup-plugin-scss";import typescript from "@rollup/plugin-typescript";import { terser } from "rollup-plugin-terser";export default [ { input: "./src/index.ts", output: [ { file: "dist/index.js", format: "cjs", }, { file: "dist/", format: "es", exports: "named", }, ], plugins: [ scss({ output: true, failOnError: true, outputStyle: "compressed", }), babel({ exclude: "node_modules/**", presets: ["@babel/preset-react"], }), external(), resolve(), typescript(), terser(), ], },];

Next, we need to update package.json. Libraries should be distributed using CommonJS and ES6. We specify the output file paths using main and module properties. We also use these properties in the Rollup configuration file.

Then we add a build script that uses rollup CLI with -c flag. This means that Rollup will look for a configuration file named rollup.config.js to bundle the component library.

... "main": "dist/index.js", "module": "dist/",..."scripts": { ... "build": "rollup -c", }...

Now if you run the npm run build command it will bundle our library and create a dist folder in the root of your project directory that could be deployed to npm.

Final Words

We have created a react component library from scratch using typescript. We installed the storybook for developing UI components in isolation and configured it to add SASS support and finally bundled everything together with Rollup.

(Video) How To Make a React Component Library - Making A React Library

I decided to write this article after I build a UI library for myself as a side project, if you are interested you can check it out here.

I hope you found this interesting and learned something. Thank you.

Per Aspera Ad Astra


How do I create a component library React? ›

Setting up the project
  1. yarn create react-library your-project-name. ...
  2. npm install -g create-react-library. ...
  3. create-react-library your-project-name. ...
  4. yarn create react-library --template=typescript your-project-name// or if using NPMcreate-react-library --template=typescript your-project-name.

How do you create a reusable React component library? ›

This allows us to write HTML in React.
  1. Step 1 - Setting up our Application. ...
  2. Step 2 - Creating the Reusable Input component. ...
  3. Step 3 - Creating a React hook component. ...
  4. Step 4 - Creating the Contact Form and Signup/Login component. ...
  5. Step 5 - Adding Routes to show our contents.
Aug 12, 2022

How do I create a React component library and publish in npm? ›

Here are the steps.
  6. IMAGES IN CSS. ...

How do you build a better React component? ›

  1. 5 tips to build a better React component. If you are maintaining your own React components library, you probably know very well that components evolve and grow. ...
  2. Stick to the native API. ...
  3. Expose the className and style props. ...
  4. Prefer composition over configuration. ...
  5. Provide building blocks. ...
  6. Extend an existing project.
Jan 11, 2022

What is the best component library for react? ›

Table of contents
  • Material-UI (best for general purpose)
  • Ant Design (AntD) (best for enterprise applications)
  • Chakra UI.
  • React Bootstrap.
  • Blueprint (best for data-dense desktop applications)
  • VisX (low-level visualization components)
  • Headless UI (React version)
  • Retool (best for internal applications)
Jan 1, 2023

How do I create and publish a library? ›

Create a library module
  1. Click File > New > New Module.
  2. In the Create New Module dialog that appears, click Android Library, then click Next. ...
  3. Give your library a name and select a minimum SDK version for the code in the library, then click Finish.

How do you create a global component in React? ›

You have to use two different Hooks. The first one is createContext to build the context inside a variable, in our example, AppStateContext . After that, you will be able to declare your AppStateProvider with functions and states related to its inner functionalities. In the render, you will wrap the AppStateContext.

How do I create a React component library with storybook? ›

Creating a React component library using Storybook 6
  1. Setting up the project.
  2. Installing Storybook.
  3. Adding stories and setting up the file structure.
  4. Compiling the Library using Rollup.
  5. Publishing and consuming the library.
Feb 3, 2023

Should I use a component library React? ›

The advantages of using a React UI component library are: Faster development: Instead of creating the code for every component, you can use a React UI component library such as MUI, Chakra UI, React Bootstrap, etc. They will expose you to multiple, ready to use components suitable for your design.

How do I create a custom npm library? ›

How To Create an npm Package From Scratch
  1. Step 1 - Install Node. js and npm.
  2. Step 2 - Create a new directory for your project.
  3. Step 3 - Create a package. json file.
  4. Step 4 - Add your packages.
  5. Step 5 - Write your first npm script.
  6. Step 6 - Add your name and author information.
  7. Step 7 - Set up your package.
May 31, 2022

Is storybook a component library? ›

The story of Storybook, a tool that can help combine your design, development, and customer teams. The story of Storybook, a tool that can help combine your design, development, and customer teams.

How to make your own npm package? ›

How to Create a NPM Package
  1. Install Node. If you do not already have Node installed, you should go ahead and install it. ...
  2. Initialize a Git Repository. Create a new project folder for your package and navigate into the folder. ...
  3. Initialize NPM in Your Project. ...
  4. Add Your Code. ...
  5. How to Create a Scoped NPM Package.
Feb 1, 2023

Why React is so complicated? ›

This is due to its modular nature. Most React modules are interrelated and require you to use other software to build a complex application. You'll also need knowledge of functional programming. You need to know the concepts of curried, immutable, and higher-order functions, which are useful for React.

How big should my React components be? ›

50 lines is a good rule of thumb for the body of your component (for class components, that is the render method). If looking at the total lines of the file is easier, most component files should not exceed 250 lines. Under 100 is ideal. Keep your components small.

What makes a good component library? ›

Consistency. Components in the library have a consistent look and feel and work together seamlessly. Intuitiveness. Developers can expect common patterns and features in the library allowing them to quickly learn and deploy components.

Are component libraries worth it? ›

Using component libraries is a well-established norm in web development. They offer a wide range of highly-customizable UI elements that guarantee great effects as well as a rich developer experience.

Do companies use MUI? ›

In the survey, 27% of developers use MUI for enterprise applications, while 20% use the library for admin dashboards.

What are the correct steps to Create a library? ›

Once you have clicked New Library option then new library files are automatically created in library folder, and then rename the new library file, as shown below. You can create another Library by right tapping on the folder name in File Explorer and from the alternatives which are included in library.

How long does it take to build a public library? ›

At present, DDC estimates that a new building will take approximately seven years to complete; a renovation will take approximately three years to complete.

How do I make my React component responsive? ›

To use the react-responsive library, we first need to install it using npm. Once the library is installed, we can import it into our React component. This React component uses the useMediaQuery hook to check the screen size and orientation of the user's device.

How do I create a custom component? ›

Click the Access advanced features button and select Define custom component.... The Custom Component Wizard dialog box opens. In the Type list, select the component type: connection, detail, seam, or part. In the Name box, enter a unique name for the component.

What is the difference between createElement and cloneElement? ›

What is the difference between createElement and cloneElement? createElement is what JSX gets compiled to and is what React uses to create React Elements (object representations of some UI). cloneElement is used to clone an element and pass it new props.

Is Storybook good for React? ›

Storybook is a compelling, visual way to document UI components and design systems alongside React. Beyond that, it is an excellent tool for presenting technical documentation and demoing implementation details. It also helps with testing new configurations before users have the chance to interact with them.

Why should you use storybook? ›

Storybook keeps track of stories

That helps you focus development on each variation of a component, even the hard-to-reach edge cases. As a product's UI expands, Storybook becomes a living directory that organizes every UI component and its stories. During development, run it in a separate node process from the app.

Is Storybook a framework or library? ›

Storybook is architected to support diverse web frameworks, including React, Vue, Angular, Web Components, Svelte, and over a dozen others. This guide helps you get started on adding new framework support for Storybook.

Will React component be deprecated? ›

There is no plans to remove class components. Library developers recommend use functional components in new code. You can write functional or class components if you can keep code clean and easy to understand for any develop.

When should I build my own component library? ›

Most engineers decide to build a component library because they recognize one of several common problems:
  1. UI inconsistencies–multiple variations of the same component.
  2. Programming syntax and markup inconsistencies–different ways of writing and structuring code.
Dec 13, 2022

Do people still use class components in React? ›

Short answer, yes. React class components are rearly used in modern React development but we still need to know them in case we need to work on old legacy projects. If you want to embrace modern React, then you should use function components with hooks.

How many npm libraries are there? ›

How many packages are there in NPM? Over 1.3 million packages are available in the main NPM registry.

How do I create a simple npm project? ›

Visit your (local) website!
  1. Step 1: Go to the NodeJS website and download NodeJS. ...
  2. Step 2: Make sure Node and NPM are installed and their PATHs defined. ...
  3. Step 3: Create a New Project Folder. ...
  4. Step 4: Start running NPM in your project folder. ...
  5. Step 5: Install Any NPM Packages: ...
  6. Step 6: Create an HTML file.
Feb 22, 2021

Is NPM package a library? ›

The World's Largest Software Registry (Library)

npm is the world's largest Software Registry. The registry contains over 800,000 code packages. Open-source developers use npm to share software. Many organizations also use npm to manage private development.

Should you build your own component library? ›

While creating a component library may take some time, it will eventually provide a huge advantage for your future projects. By using existing components, you'll be able to save yourself a lot of work and time.

What is the purpose of a component library? ›

A component library is a collection of UI elements, such as the design of buttons, the selection of fonts, and other typography and visual elements. The purpose of such a library is to keep reusable user interface components in a single place that can then be used for different projects.

How to build a React library using TypeScript? ›

To sum it up, there are 9 steps to build a React Library with TypeScript:
  1. Create a new project with package. ...
  2. Configure lerna.
  3. Create new package packages/my-react-package.
  4. Install peerDependencies for packages/my-react-package.
  5. Configure TypeScript for my-react-package.
  6. Configure Rollup to bundle our package.
Oct 17, 2021

Can you make money off npm packages? ›

All npm packages will be able to monetize. Other markets can be added as well. Let them know about Dev Protocol for the projects you're involved with or want to support.

How much does npm cost? ›

Our paid user account plan costs $7 per month. For more information, see the "npm account" column on our pricing page. Your paid plan and billing cycle will start when you submit your credit card information, and you will be charged for the first month immediately.

How does npm make money? ›

NPM, Inc. is the company behind the npm package manager, which is a tool for managing packages of JavaScript code. NPM plans to make money by offering paid services to developers and businesses that use the npm registry, which is a database of JavaScript packages that can be installed and used in Node. js projects.

Why React is overhyped? ›

The first and most crucial reason React has the hype is that Facebook created and promoted it. Let's not underestimate the kind of reach Facebook has when promoting things that they make. Right away, we can see that it started with inflated popularity because it came from Facebook, and they're promoting React.

Is React hard to master? ›

Both HTML and CSS are integral to any web development project. If you have these skills already, then learning React should be a relatively straightforward process. It has its own unique set of challenges, but it is an excellent tool to have in order to start or further your career as a web developer.

What are the biggest limitations of React? ›

5 Big Limitations of React
  • It's a Library, Not a Framework. Like other Javascript libraries, React contains pre-written code. ...
  • It Uses JSX. React uses JSX, a syntax extension to JavaScript. ...
  • Does Not Support SEO. React, by design, was not built with SEO in mind. ...
  • Lack of Updated Documentation. ...
  • Fast Development Speed.
Jan 7, 2023

Can I learn React in a week? ›

A programmer who is comfortable with HTML and one other programming language will be able to pick 100% of React in 1 day or less. A beginner programmer should be good enough with React in a about a week.

How many days does it take to master React? ›

For a programmer who is already familiar with HTML and at least one other programming language, learning React will take no more than a single day. React may be learned by a novice programmer in a matter of days. There are more libraries and technologies that may be used with React, such as Redux or Relay.

Is React too hard? ›

Thankfully, React is easy to learn, but only once you have foundational knowledge in JavaScript. Of course, the difficulty that comes with learning anything new is somewhat subjective. Regardless of your prior experience, plenty of resources are available to help make React easier to learn.

Is React overkill for small apps? ›

Using React can be overkill if the requirements are too simplistic. For example, you need to make a few pages with no dynamic elements or customization. In cases like these, it might suffice to use simple HTML and a bit of JavaScript.

How many props is too many React? ›

Passing too many props into a single component may be a sign that the component should be split up. How many are too many you ask? Well.. “it depends”. You might find yourself in a situation where a component have 20 props or more, and still be satisfied that it only does one thing.

What is the best way to handle large data in React? ›

When handling a large list, it's important not to render all the data at once to avoid overloading the DOM tree. The best approach to improving performance depends on your use case. If you prefer to render all the data in one place, infinite scroll or a windowing technique would be your best bet.

How do you add a component to a library? ›

Select Apps in the left navigation, select Component Libraries, and then select New component library. Name the component library as Menu components; you can also provide a different name of your choice.

What are component libraries react? ›

A React UI component library is a tool or software system that comes with ready-to-use components to use in React-based applications and sites. These component libraries help accelerate the software development speed while offering tons of benefits to developers and businesses.

How do you create a react component function? ›

React Function Component: Event Handler

We can simply define a function inside our component, and we can call it inside the return() method. <button onClick={doSomething}>Do something</button>; If you also observe, we will not call the method like this doSomething(); instead, we will reference the method.

Should I build my own component library? ›

If you own a number of different websites, mobile apps, and web apps, you can greatly benefit from having a library of your own. Not only do you get more control over the entire brand's visual identity, but you also benefit from a far stronger consistency, reusability, and development speed.

When would you use a component library? ›

When you want to optimize development across platforms, definitely consider using a component library. Component libraries let UX and UI designers leverage faster growth and development by offering an accessible, open-source storage room of production-ready, reusable, customizable code components.

Why create a component library? ›

Component libraries help unify code for improved front-end cohesion and consistency. It also minimizes how much code developers must write to release new products and features.

Are React class components dead? ›

There is no plans to remove class components. Library developers recommend use functional components in new code. You can write functional or class components if you can keep code clean and easy to understand for any develop.

Why do we need React library? ›

React is a library for helping developers build user interfaces (UIs) as a tree of small pieces called components. A component is a mixture of HTML and JavaScript that captures all of the logic required to display a small section of a larger UI.

Should I use functional or class components? ›

If you love functional programming and don't like classes, go functional. If you want consistency between all components in your codebase, go with classes. If you're tired of refactoring from functional to class based components when you need something like state , go with classes. Save this answer.

How to create component in ReactJS using npm? ›

For this purpose, we will move into our React.js application folder by executing the following command in the terminal:
  1. > cd mern-emsystem.
  2. > npm start.
  3. > npm install bootstrap.
  4. import "bootstrap/dist/css/bootstrap. min. ...
  5. import React, { Component } from 'react'; ...
  6. import React from 'react'; ...
  7. > npm start.

Why functional components are better? ›

Easier to test: You don't have to worry about hidden state and there aren't as many side effects when it comes to functional components, so for every input, the functions will have exactly one output.


1. How to build a reusable react component library like a pro - Time to React - April 2020
2. Create your own design system! with Storybook React and TypeScript | Storybook 6 Crash Course
(Marius Espejo)
3. How to create a React component library with create react app & the Github package registry - Part 1
(Richard Oliver Bray)
4. React Storybook Crash Course
(Web Dev Simplified)
5. Crash Course: Making a React Component Library with Storybook and NPM
(Progressive Dev)
6. How to build a React component as an NPM module
(building random things with javascript)


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