Function hasValidKey

docs/external/js/react.development.js:670–682

(config)

  }

  function hasValidKey(config) {
    {
      if (hasOwnProperty$1.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 () {