June 15, 2020
How to Detect Credit Card Type in Javascript
HTML:
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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <link rel="stylesheet" href="style.css"> </head> <body> <div> <input type="text"> <button>Check</button> <h1>Result</h1> </div> <script src="https://cdnjs.cloudflare.com/ajax/libs/cleave.js/1.5.8/cleave.min.js"></script> <script src="script.js"></script> </body> </html> |
CSS:
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body { text-align: center; } div { display: inline-block; } button, input { display: inline-block; padding: 10px 20px; } |
Javascript:
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let btnCheck = document.querySelector('button'); let result = document.querySelector('h1'); let cardType; var cleave = new Cleave('input', { creditCard: true, delimiter: '-', onCreditCardTypeChanged: type => cardType = type }); btnCheck.addEventListener('click', () => { result.innerText = `${cleave.getFormattedValue()} - ${cardType}`; }); |