All files descend-from.js

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const hasClass = (node, className) => ` ${node.classList} `.includes(` ${className} `);
 
module.exports = (node, from) => {
  if (from && typeof from === 'object')
    return from.contains(node);
 
  Iif (typeof from !== 'string')
    return false;
 
  from = from.trim();
 
  if (from.charAt(0) === '#')
    return document.getElementById(from.replace('#', '')).contains(node);
 
  Iif (from.charAt(0) !== '.')
    return false;
 
  from = from.replace('.', '');
 
  while (node !== document.body.parentNode) {
    if (hasClass(node, from))
      return true;
 
    node = node.parentNode;
  }
 
  return false;
};