text: function createEl(htmlString, attrs, ...children) {
      if (typeof htmlString !== "string") {
        throw Error("Argument 'htmlString' is required and must be a string");
      }
    
      const el = document.createElement(htmlString);
    
      if (typeof attrs === "object") {
        for (let key in attrs) {
          if (key.substring(0, 2) === "on") {
            el.addEventListener(key.substring(2).toLowerCase(), attrs[key]);
          } else {
            el.setAttribute(key, attrs[key]);
          }
        }
      }
    
      children.forEach(function(child) {
        let node;
    
        if (child.constructor.name.includes("Element")) {
          node = child;
        } else {
          node = document.createTextNode(child);
        }
    
        el.appendChild(node);
      });
    
      return el;
  };
  
  module.exports = createEl;
  
  
  