_cleanClasses()

in Readability.js [418:434]

• 15 lines of code
• 4 McCabe index (conditional complexity)

  _cleanClasses(node) {
    var classesToPreserve = this._classesToPreserve;
    var className = (node.getAttribute("class") || "")
      .split(/\s+/)
      .filter(cls => classesToPreserve.includes(cls))
      .join(" ");

    if (className) {
      node.setAttribute("class", className);
    } else {
      node.removeAttribute("class");
    }

    for (node = node.firstElementChild; node; node = node.nextElementSibling) {
      this._cleanClasses(node);
    }
  },