Originally published by Adesh at zeptobook.com
Unlike Angular, which is a framework (or a complete solution),
React is essentially a ‘view library’. It only takes care of the view or what is rendered in the DOM. It doesn’t have an opinion about other aspects of an app such as
HTTP services, etc. For those concerns, you need to use other libraries. This means you get the freedom to choose the libraries that you’re familiar with or prefer.
With the help of React, you can make very interactive UI without much pain. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes.
Declarative views make your code more predictable and easier to debug.
Components are the building block of React apps. A component is a piece of UI. It has data and describes what that piece of UI should look like. When building React apps, we build a bunch of small, independent and reusable components and compose them to make complex UIs. So every React app is essentially a tree of components. If you’ve worked with Angular 2+, this should sound familiar.
React is based on component based architecture. You can build encapsulated components that manage their own state, then compose them to make complex UIs.
You can develop reusable components without much hassle.
We’ll assume that you have some familiarity with
Before going to create your first react app, let’s first setup the development environment.
First check, whether you have
NPM installed in your machine. You can go to nodejs.org and install
Node, if you don’t have.
Once you have installed Node and NPM in your machine, choose your code editor. Feel free to use any editors you prefer. My preferred editor is Visual Studio Code/VSCode which you can get from code.visualstudio.com
npx create-react-app my-app
This command will create
my-app folder having react app files. Now, go to
my-app folder and type this command.
Now, type this command to run your react app.
This command will show below message in your terminal window, and open the app in browser window. The app url will be
http://localhost:3000/ in your browser tab.
Now, open your code editor, here I have Visual Studio Code, so I am going to open our my-app in the VS Code editor to see the react app project structure.
This is very basic project structure.
You will have
src folders in the root of the
my-app folder. Along with these folders, you can see
package.json file as well.
Open up package.json. Chances are you’re already familiar with this file. If not, package.json is like an identification card for a project. It includes the project’s name, version, dependencies, etc.
Note that under dependencies, we only have 3 dependencies:
Next is the
index.html page, located in the
public folder. If you do link up any external stylesheets, or need to add bootstrap, or another feature, this is where you would add it.
You can also change the title here. Other than that, you won’t usually need to touch this file very much. You will also notice the div with the id of “root”. This is where all of the content will be output. You don’t need to change that, but just know that it’s there.
The next file you may want to look at is your
index.js file in the src folder. Here, we’re importing React and the ReactDOM. We are also rendering everything here to the
Now, we are going to create our first react element. So, first of all, delete all files from the
src folder, and create a file
index.js in same folder.
Write the below mentioned code in this file, and save the file.
import React from 'react'; import ReactDOM from 'react-dom';
const element = <h1>Hello ZeptoBook!</h1>;
As soon as you saved your file, our first element H1 will be displayed on the browser window.
Let’s have a look at above code.
On the top 2 lines, we are importing react modules.
import React from ‘react’;
import ReactDOM from ‘react-dom’;
On line 4, we are creating a constant named
element, and created H1 tag inside this element.
Finally, the last line of code will render our react element.
ReactDOM.render() will render this element in DOM. If you notice, we used
root as our container to render this element. You can find the
root element in
So, here we learn, how to setup and run our react app very easily without any hassle.
Originally published by Adesh at zeptobook.com
If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?
In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.
Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.
Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.
The popularity of React Native comes from its advantages. Some of its advantages are as follows:
Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.
React Native is very close to native. Consider the following aspects as described on the React Native website:
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
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It’s 2021, everything is getting replaced by a technologically emerged ecosystem, and mobile apps are one of the best examples to convey this message.
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Are you a mobile app developer looking for more efficient tools for your projects? Mobile app development is getting tougher and tougher as the market continues to grow. As a developer, you need to develop Apps which meet the demands of your users. To achieve this, adopt the right tools, like the React Native development framework.
Based on Statista data, the global mobile app market will generate over $935 billion in 2023 from more than $365 billion in 2018. The majority of this amount will come from in-app advertising and paid downloads. To gain a share in the marketplace, companies need to embrace new technologies to provide what consumers are looking for, such as seamless navigation and aesthetic appeal—the React Native development framework makes it all possible.
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React Native is the most popular dynamic framework that provides the opportunity for Android & iOS users to download and use your product. Finding a good React Native development company is incredibly challenging. Use our list as your go-to resource for React Native app development Companies in USA.
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A Brief about the company details mentioned below:
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