export function hasClass(node, className) {
  if (node.classList) {
    return node.classList.contains(className);
  }

  var originClass = node.className;
  return " ".concat(originClass, " ").indexOf(" ".concat(className, " ")) > -1;
}
export function addClass(node, className) {
  if (node.classList) {
    node.classList.add(className);
  } else {
    if (!hasClass(node, className)) {
      node.className = "".concat(node.className, " ").concat(className);
    }
  }
}
export function removeClass(node, className) {
  if (node.classList) {
    node.classList.remove(className);
  } else {
    if (hasClass(node, className)) {
      var originClass = node.className;
      node.className = " ".concat(originClass, " ").replace(" ".concat(className, " "), ' ');
    }
  }
}
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