const getType = {};\n  return (\n    functionToCheck &&\n    getType.toString.call(functionToCheck) === '[object Function]'\n  );\n}\n","/**\n * Get CSS computed property of the given element\n * @method\n * @memberof Popper.Utils\n * @argument {Eement} element\n * @argument {String} property\n */\nexport default function getStyleComputedProperty(element, property) {\n  if (element.nodeType !== 1) {\n    return [];\n  }\n  // NOTE: 1 DOM access here\n  const window = element.ownerDocument.defaultView;\n...