[JS Email Obfuscater] Simple JavaScript to obfuscate "mailto" links.

email-obfuscater.js

/**
 * Obfuscates email addresses in 'mailto' links to protect them from spam bots.
 * 
 * This function first selects all anchor elements (<a>) in the document that have a 'href' attribute 
 * starting with 'mailto:'. For each of these mailto links, it retrieves the email address, 
 * obfuscates it, and then modifies the link's 'href' attribute to use a JavaScript code snippet 
 * for redirection. This obfuscation involves converting each character of the email address 
 * into its corresponding character code, joined by dots. Additionally, a click event listener 
 * is added to each link to handle the redirection in a user-friendly manner. When a user 
 * clicks on the obfuscated link, the browser redirects them to the actual 'mailto' link, 
 * allowing them to send an email to the address.
 *
 * The function is set to be called automatically when the window finishes loading,
 * ensuring that all 'mailto' links are obfuscated as soon as the page is ready.
 */
function obfuscateMailtoLinks() {
  const mailtoLinks = document.querySelectorAll('a[href^="mailto:"]');

  mailtoLinks.forEach(link => {
    const email = link.getAttribute('href').split(':')[1];
    const obfuscatedEmail = email.split('').map(char => {
      return char.charCodeAt(0);
    }).join('.');

    link.setAttribute('href', `javascript:location.href='mailto:'+String.fromCharCode(${obfuscatedEmail})`);
    link.addEventListener('click', (e) => {
      e.preventDefault();
      window.location.href = `mailto:${email}`;
    });
  });
}

window.onload = obfuscateMailtoLinks;