The Octal numeral system is the base-8 number system which uses the digits 0 to 7. It is also known as Oct for short. The following example shows how to validate the user entered data and check whether it is valid or not using the npm module in the ReactJS application.
Creating React Application And Installing Module:
Step 1: Create a React application using the following command:
npx create-react-app foldername
Step 2: After creating your project folder i.e. foldername, move to it using the following command:
Step 3: After creating the ReactJS application, Install the validator module using the following command:
npm install validator
Project Structure: It will look like the following.
App.js: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.
Step to Run Application: Run the application using the following command from the root directory of the project:
- The following will be the output if the user enters an invalid octal number as shown below:
- The following will be the output if the user enters a valid octal number as shown below: