code: function getElementName (props, tag) {
    if (typeof props.id === 'string' && !placeholderRe.test(props.id)) {
      return camelCase(props.id)
    }
    if (typeof props.className === 'string' && !placeholderRe.test(props.className)) {
      return camelCase(props.className.split(' ')[0])
    }
    return tag || 'nanohtml'
  }
docs: Try to return a nice variable name for an element based on its HTML id,
  classname, or tagname.