ReactJS | Calculator App ( Introduction ) Last Updated : 09 Jan, 2025 Comments Improve Suggest changes Like Article Like Report We have seen so far what React is and what it is capable of. To summarise in brief we got to know what React web apps are, React Components, Props, States, and the lifecycle of a React component. We also created a basic clock application using all of the following. But React is a javascript library to build flexible User Interfaces, and we have not created any so far. So it is time for us to step into the real world of React by creating a simple yet impactful project. Our aim for this article will be to introduce our readers to a newer idea of learning on the go while developing with us, and we have chosen to create a React Calculator as our first-ever project. Nothing could have been a better way to count the miles to travel with a great start like this. Why a calculator,?We chose to develop the calculator for some specific set of reasons, and most of them are mentioned and described in brief. Simplicity: A calculator is a simple gadget, and you have seen, used, and misused several of these. You have seen many varieties of calculators and now we give you the chance to create a basic virtual calculator that will be able to do all the basic arithmetic operations such as addition, subtraction, multiplication, and division. Being this simple it will easier for both of us to explain and understand the process.Scope: What we are targeting may be very simple, but it has a lot of future scope. Further in this article, I will present to you a glimpse of the completed application and you will be able to understand that in spite of being complete it will offer you to improvise and create an enhanced version could be targeted towards a specific field such as developing a scientific calculator; that's up to you.Abundance of Interesting Points: A calculator may be a very simple thing but if you think to create one for yourself you will need to identify and create all the different components, identify and establish a mutual interactive platform and last but not the least you will have to handle all the failures, crashes, and bugs.Cosmetic Challenge: If you have a knack for detail then developing and styling a calculator will be a good starting point for you as the calculator itself should not take up a lot of space yet it has several buttons to accommodate and while designing you will also have to take care of the readability and overall User Experience as at the end of the day this is your first UI Project. Building a calculator app is a great way to practice your React skills. Glimpse of the Finished Project Looks good? Let's start our journey then. Happy Coding. ReactJS | Calculator App ( Structure ) Comment More infoAdvertise with us Next Article ReactJS | Calculator App ( Introduction ) P PronabM Follow Improve Article Tags : Project Web Technologies ReactJS Web Development Projects ReactJS-Projects +1 More Similar Reads ReactJS Calculator App (Adding Functionality) We are going to build a project. that is a basic calculator application in ReactJS. It takes input from button clicks, builds a mathematical expression, and displays the result. The app includes functionalities like clearing the screen, deleting the last input, and handling errors.Preview Image Prer 3 min read Aspect Ratio Calculator using React In this React project, we'll build an interactive Aspect Ratio Calculator where users can upload images to visualize aspect ratios and adjust width and height values for live previews.Preview of final output: Let us have a look at how the final output will look like.PrerequisitesReactCSSJSXFunction 4 min read ReactJS Calculator App (Styling) Now that we have added functionality to our Calculator app and successfully created a fully functional calculator application using React. But that does not look good despite being fully functional. This is because of the lack of CSS in the code. Let's add CSS to our app to make it look more attract 3 min read ReactJS Calculator App ( Structure ) In our previous article, we have talked about a Calculator app we are going to develop and also have seen a glimpse of our final project. In this article, we will get our hands ready to start the development of our first application. We have told this earlier also that every application we will deve 4 min read ReactJS Calculator App (Building UI) We created our first app and deleted all those files we did not need, and created some of the files that we will need in the future. Now as we stand in our current situation we have a blank canvas before us where we will have to create our calculator app. We will be creating the project in multiple 4 min read Like