Function isValidElement

docs/external/js/react.development.js:982–984

* Verifies the object is a ReactElement. * See https://reactjs.org/docs/react-api.html#isvalidelement * @param {?object} object * @return {boolean} True if `object` is a ReactElement. * @final

(object)

   */

  function isValidElement(object) {
    return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
  }

  var SEPARATOR = '.';
  var SUBSEPARATOR = ':';