Function hasValidKey

bundle.js:1610–1620

(config)

    }

    function hasValidKey(config) {
      {
        if (hasOwnProperty.call(config, 'key')) {
          var getter = Object.getOwnPropertyDescriptor(config, 'key').get;
          if (getter && getter.isReactWarning) {
            return false;
          }
        }
      }
      return config.key !== undefined;
    }

    function defineKeyPropWarningGetter(props, displayName) {
      var warnAboutAccessingKey = function warnAboutAccessingKey() {