Function hasValidKey

docs/index.js:1000–1006

(config)

      return null === dispatcher ? null : dispatcher.getOwner();
    }
    function hasValidKey(config) {
      if (hasOwnProperty.call(config, "key")) {
        var getter = Object.getOwnPropertyDescriptor(config, "key").get;
        if (getter && getter.isReactWarning) return !1;
      }
      return void 0 !== config.key;
    }
    function defineKeyPropWarningGetter(props, displayName) {
      function warnAboutAccessingKey() {
        specialPropKeyWarningShown ||