Course Content
Understanding ReactJS
ReactJS is a JavaScript library that is used for building user interfaces. It is maintained by Facebook and has become one of the most popular libraries because of its flexibility and ease of use. ReactJS allows you to create reusable components that can be easily integrated into your application.
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Setting Up Your Project
Creating the Calculator Component
Once you have set up your project, the next step is to create the calculator component. In ReactJS, a component is a reusable piece of code that can be used in multiple places throughout your application. To create the calculator component, you need to create a new file called "Calculator.js" in the "src" directory of your project. Once you have created the file, you can add the following code: import React, { Component } from 'react'; class Calculator extends Component { render() { return ( <div> <h1>Calculator</h1> </div> ); } } export default Calculator; This code imports the React and Component classes from the ReactJS library and defines a new component called "Calculator". The component returns a simple div that contains an h1 element with the text "Calculator".
Adding State to the Calculator Component
The next step in creating a calculator in ReactJS is to add state to the calculator component. In ReactJS, state is used to store data that can be used by the component and its children.
How to Create a Calculator in ReactJS

The first step in creating a calculator in ReactJS is to set up your project. You can set up your project using the Create React App tool, which is a command-line interface for creating ReactJS applications.

To set up your project, you need to run the following command:

npx create-react-app my-calculator

This command will create a new ReactJS project called “my-calculator” in your current directory. Once the project has been created, you can navigate to the project directory by running the following command:

cd my-calculator