How To: Getting started with React

Or, How Do I Create Something Fast

Photo by Oskar Yildiz on Unsplash

What is React?

React is a JavaScript library for building user interfaces. It is one of the most popular and widely used libraries for developing web and mobile applications. With React, developers can create high-performance and responsive applications with minimal code. React is an open-source project maintained by a large community of developers.

React makes development easier by offering a powerful and flexible way to create user interfaces. It allows developers to create components that can be reused throughout the application and eliminates the need to write large blocks of code. Additionally, React is incredibly fast, making it a great choice for developing high-performance web applications.

If you’re just getting started with React, there are many great resources available to learn the basics. YouTube has many great tutorials on React, such as the popular series by The Net Ninja. Finally, there are various online courses that offer in-depth tutorials and guides on React.

No matter which resource you choose, you should be off to a great start in learning and using React.

Benefits of React

React offers a variety of benefits that make it an ideal choice for developers looking to create dynamic, responsive web applications.

One of the main benefits of React is its declarative nature. With React, a developer can create components that describe how the user interface should look, rather than having to manually update the DOM. This makes it easy to build complex interfaces quickly since you don’t need to worry about managing the DOM elements yourself.

React components are also reusable and can be used to create multiple versions of the same user interface. This makes it easy to reuse components across different projects, saving development time and keeping code organized. React also comes with helpful built-in features, such as state management and lifecycle methods, that make it easier to manage user interaction and data.

Additionally, React’s powerful debugging tools can help developers easily identify and fix any bugs that may crop up. This makes it easy to create bug-free code, allowing developers to focus on the functionality of the application rather than debugging.

Overall, React has a lot to offer developers looking to create dynamic web applications. To learn more about React and how to get started with it, check out this video tutorial from the official React YouTube Channel:

You can also find a variety of helpful blog posts and tutorials from the React website, including this one which offers an overview of the React library: https://reactjs.org/tutorial/tutorial.html.

Create a React Environment

Creating a React environment can seem intimidating, but it doesn’t have to be! With the right tools and resources, the process can be straightforward and easy.

You will need a code editor. Visual Studio Code is a popular, free, and open-source editor that many React developers use. You can download the latest version of Visual Studio Code.

If you need an extra hand getting started with React, check out this helpful YouTube series

Now Follow the Steps Below

Download Node.js

If you are ready to get started with React, the first step is to download Node.js. Node.js is an open-source, cross-platform, JavaScript runtime environment. This means that Node.js can be used to create applications that are run by a browser or in a server environment.

To install Node.js, visit the official website at https://nodejs.org/en/. Here you will be able to download the most recent version of Node.js for the operating system of your computer.

Once you have installed Node.js, you can begin to learn React. It is highly recommended to watch some tutorials on YouTube or to read blog posts about React to familiarize yourself with the technology. Here are some helpful resources to get you started with React:

Learn React JS — Full Course for Beginners

React Tutorial for Beginners: Learn ReactJS in 5 Hours

React Basics — A beginners guide to React

https://www.freecodecamp.org/news/react-basics-the-beginners-guide-to-react-14e1f7d3e3cb/

Now that you have downloaded Node.js and have familiarized yourself with React, you are ready to start developing your own React applications!

Install Create-React-App

Getting started with React is easy and can be done quickly with the help of Create-React-App. This is a command line utility that lets you quickly create and setup a React project. To install Create-React-App, you will need to have Node.js and npm (Node Package Manager) already installed on your computer. Once you have these tools installed, you can install Create-React-App by running the below command in your terminal.

npx create-react-app 

This will create a new directory with the project name which will contain all of your React project files.

Write Your First React Component

A component is a self-contained piece of code that can be used to output content to the page. It’s a great way to break down your app into smaller parts, allowing you to manage and compose a complex application in a simple way.

When creating a component, you will use a JavaScript class to define it. This class will extend React’s Component class, allowing you to access its properties and methods to create your own custom component. Inside the class, you will define a render() method, which will return the HTML element to display on the page.

A basic React component looks like this:

function MyComponent() {
return (

My Component



);
}

The MyComponent function returns a React Element, which is a description of what you want to see on the screen. The React Element can contain components, HTML elements, or text. It’s important to note that React components must start with a capital letter.

Now that you know how to write a basic React component, how do you make it interactive? React provides several features that allow you to add state and handle user interactions. You can use state to store data and display it in the component. You can also use lifecycle methods to control how the component updates and renders.

Lastly, once you have created your component, make sure to check out the official React testing library for testing your component. This will ensure that your component works correctly and is ready to be used in production.

The great thing about React is that once you have the basics down, you can start building complex React apps. So get started today and create your first React Component!

Render the Component to the DOM

Rendering the components to the DOM is where the rubber meets the road. This is where the React code you’ve written gets to show off its stuff and actually do something.

It is generally a good practice to have a single root element in your React application. This element serves as the mounting point for React. In the example below, we create a new element `div` with a unique ID of `root`, and React will render its components inside of this element.

const rootElement = document.getElementById("root");
ReactDOM.render(, rootElement);

For more information about rendering components in React, here are some great resources that can help you get started:

React Docs: Rendering Elements | FreeCodeCamp: ReactDOM | React Tutorials: Rendering a Component

Adding React Router

Adding React Router is an important step in creating a React app. React Router is a powerful library that provides routing and navigation for React applications. It allows developers to create single-page applications that can handle multiple paths and route components.

Getting started with React Router can be intimidating. YouTube has a great tutorial from the Definitive React series that covers the basics of React Router. For more advanced topics, the React Router documentation has a detailed guide. You can also find a number of blog posts and tutorials online that offer more information about React Router.

At the end of the day, React Router is an essential tool for building React applications. With the right resources and guidance, you can quickly and easily get started with React Router and build powerful, interactive apps.

Integrating State Management

React requires a state management solution to keep track of user input, data, and application state. Integrating a state management solution into your React application is a must in order to keep your code organized and be able to develop quickly.

There are a variety of state management libraries available, and some popular options include Redux, MobX, and Unstated. Redux is the most popular choice and allows you to store your application state in a single global store and use actions and reducers to update it. MobX is a simpler solution and uses observables to automatically detect and update the parts of your application that have changed. Unstated is a lightweight library that uses React’s context API to manage state, and is great for small applications.

To get started, you can watch this video tutorial on integrating Redux into a React application:

https://www.youtube.com/watch?v=9hZlN5VVV5w

You can also read this blog post on the differences between Redux, MobX and Unstated: https://blog.bitsrc.io/what-is-the-difference-between-redux-mobx-and-unstated-9771c3d3a85a.

No matter which state management library you choose to use, it is important to understand the core concepts and how to use them effectively in your React application. Doing so will make development smoother, and allow you to quickly build complex applications.

Adding Styling with CSS and Sass

Adding styling to your React project can be an intimidating task, but with CSS and Sass, you can quickly and easily set up the look and feel of your web application. CSS stands for Cascading Style Sheets and is the language used to control the layout of webpages. Sass is an extension of CSS and allows you to write much more concise code.

When it comes to adding styling to your React project, you’ll first want to create a separate stylesheet for your application. This allows you to easily manage and maintain your code. From there, you can begin to write your styles in either CSS or Sass. If you’re feeling adventurous and want to leverage the power of Sass, you can use popular frameworks like Bootstrap or Material UI to get you up and running quickly.

If you’re just getting started with CSS and Sass, there are plenty of resources available to help you. We recommend checking out YouTube tutorials, like this one on getting started with Sass:

https://www.youtube.com/watch?v=roywYSEPSvc

Additionally, you can find lots of helpful blog posts, such as this one on adding Sass to your React project: https://www.freecodecamp.org/news/how-to-set-up-a-react-project-with-sass/.

Once you get the hang of it, you’ll be able to create complex styling for your React project in no time.

Resources for Further Learning

Once you’ve gotten started learning React, you may want to take your knowledge to the next level. There are plenty of resources you can use to further your React knowledge. Here are just a few of our favorites:

  • The Beginner’s Guide to React— This course from Egghead.io provides an in-depth introduction to React, using projects and examples to illustrate the key components of the library.
  • React tutorials on YouTube— This curated list of YouTube videos covers all the basics of React and React Native, with tutorials on everything from setup to advanced topics.
  • React blogs— React is a constantly evolving library, and staying on top of the changes can be difficult. For that, we recommend checking out React blogs, which often post detailed tutorials, case studies, and other helpful information.
  • React docs— React is well-documented and often the best source of information. Be sure to check the official documentation when you have a question or need more information on a specific topic.

These resources will help you get started and build a foundation for your React knowledge. With the right resources, you’ll be able to take your React skills to the next level.


How To: Getting started with React was originally published in A Technologists POV on Medium, where people are continuing the conversation by highlighting and responding to this story.


Author: Kyle Davidson CEO | Founder

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