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Regular Expression Development Tutorials, Guides & Insights

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Checking if the User is Accessing from a Mobile Device in JavaScript

Code January 26, 2024
javascript

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Validating Credit Card Numbers in JavaScript

Code January 26, 2024
javascript

function isValidCreditCardNumber(cardNumber) {
    const regex = /^[0-9]{13,16}$/;
    return regex.test(cardNumber);
}
const cardNumber = '1234567890123456';
console.log('Is Valid Credit Card Number:', isValidCreditCardNumber(cardNumber));

Detecting Browser and Version

Code January 26, 2024
javascript

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JavaScript Validate URL

Code January 26, 2024
javascript

// Function to validate a URL using a regular expression
function isValidURL(url) {
    const urlRegex = /^(ftp|http|https):\/\/[a-zA-Z0-9-]+(\.[a-zA-Z]{2,})+(\/[^\s]*)?$/;
    return urlRegex.test(url);
}

// Example URL to validate
const websiteURL = 'https://www.example.com';

// Check if the URL is valid using the isValidURL function
console.log('Is Valid URL:', isValidURL(websiteURL));