How to use @devexpress/dx-core - 7 common examples

var getSharedEventEmitter = function getSharedEventEmitter() {
  if (!eventEmitter) {
    eventEmitter = new EventEmitter();

    ['mousemove', 'mouseup', 'touchmove', 'touchend', 'touchcancel'].forEach(function (name) {
      return window.addEventListener(name, function (e) {
        return eventEmitter.emit([name, e]);
      }, { passive: false });
    });
  }
  return eventEmitter;
};

var isTrackedDependenciesChanged = function isTrackedDependenciesChanged(pluginHost, prevTrackedDependencies) {
  var getGetterValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : function (getterName) {
    return pluginHost.get(getterName + 'Getter');
  };

  var trackedDependencies = Object.keys(prevTrackedDependencies).reduce(function (acc, getterName) {
    return Object.assign(acc, defineProperty({}, getterName, getGetterValue(getterName)));
  }, {});

  return !shallowEqual(prevTrackedDependencies, trackedDependencies);
};

value: function shouldComponentUpdate(nextProps) {
      var _getRenderingData = this.getRenderingData(nextProps),
          params = _getRenderingData.params;

      return !shallowEqual(params, this.params) || this.props.children !== nextProps.children;
    }
  }, {

function DragDropProviderCore() {
    classCallCheck(this, DragDropProviderCore);

    this.payload = null;
    this.dragEmitter = new EventEmitter();
  }

}).map(function (_ref2) {
    var _ref3 = slicedToArray(_ref2, 2),
        key = _ref3[0],
        geometry = _ref3[1];

    var animation = prevAnimations.get(key);
    if (!animation) return [key, geometry];
    var progress = easeOutCubic(getAnimationProgress(animation));
    var left = (animation.left.to - animation.left.from) * progress + animation.left.from;
    return [key, {
      left: left,
      right: geometry.right - (geometry.left - left)
    }];
  }));

return new Map([].concat(toConsumableArray(animations.entries())).map(function (_ref6) {
    var _ref7 = slicedToArray(_ref6, 2),
        key = _ref7[0],
        animation = _ref7[1];

    var progress = easeOutCubic(getAnimationProgress(animation));
    var result = _extends({}, animation.style);
    if (animation.left) {
      var offset = (animation.left.to - animation.left.from) * (progress - 1);
      result.transform = 'translateX(' + offset + 'px)';
    }
    return [key, result];
  }));
};

function PluginHost$$1(props) {
    classCallCheck(this, PluginHost$$1);

    var _this = possibleConstructorReturn(this, (PluginHost$$1.__proto__ || Object.getPrototypeOf(PluginHost$$1)).call(this, props));

    _this.host = new PluginHost();
    return _this;
  }