text: function includes(search, start) {
    if (typeof start !== 'number') {
      start = 0
    }
    if (start + search.length > this.length) {
      return false
    } else {
      return this.indexOf(search, start) !== -1
    }
  }
  
  function remove() {
    this.parentNode && this.parentNode.removeChild(this)
  }
  
  if (!String.prototype.includes) {
    String.prototype.includes = includes
  }
  
  if (!Element.prototype.remove) Element.prototype.remove = remove
  if (Text && !Text.prototype.remove) Text.prototype.remove = remove
  