Frontend Mentor - Interactive card details form solution

This is a solution to the Interactive card details form challenge on Frontend Mentor. Frontend Mentor challenges help you improve your coding skills by building realistic projects.

Table of contents

• Overview
  • The challenge
  • Screenshot
  • Links
• My process
  • Built with
  • What I learned
  • Continued development
  • Useful resources
• Author
• Acknowledgments

Overview

The challenge

Users should be able to:

• Fill in the form and see the card details update in real-time
• Receive error messages when the form is submitted if:
  • Any input field is empty
  • The card number, expiry date, or CVC fields are in the wrong format
• View the optimal layout depending on their device's screen size
• See hover, active, and focus states for interactive elements on the page

Screenshot

Links

• Solution URL: Frontend Mentor solution link
• Live Site URL: https://drougnov.github.io/interactive-card-details-form-main/

My process

Built with

• Semantic HTML5 markup
• CSS custom properties
• Flexbox
• Mobile-first workflow
• JavaScript

What I learned

In this challange I learned:

• How to add multiple input with one label

• How to change textContent based on live input values

• How to validate text and numbers input field

• How to place a character(letter, numbers etc.) after nth characters of a string

• How to add a 0 before numbers below 10

Continued development

I need to learn how to handle form more easily and proficiently.

Useful resources

• StackOverflow: This dosen't need explanation ;)

Author

• Frontend Mentor - @BIPLOB BARUA
• Facebook - @Biplob Barua Rocky

Acknowledgments

I would be glad if you can leave out some suggestion on how I can improve my code.