List map

src/chart/bar/BarView.js

 define(function (require) {
 
-    var Bar = require('../../echarts').extendChartView({
+    return require('../../echarts').extendChartView({
 
         type: 'bar',
 
@@ -62,6 +62,4 @@ define(function (require) {
             this.data = data;
         }
     });
-
-    return Bar;
 });
\ No newline at end of file

src/chart/bar/barLayoutGrid.js

@@ -13,7 +13,7 @@ define(function(require) {
         var columnsMap = {};
 
         zrUtil.each(barSeries, function (seriesModel, idx) {
-            var cartesian = seriesModel.coordinateSystem
+            var cartesian = seriesModel.coordinateSystem;
 
             var categoryAxis = cartesian.getAxesByScale('ordinal')[0];
 
@@ -130,7 +130,7 @@ define(function(require) {
 
         var lastStackCoords = {};
 
-        ecModel.eachSeries(function (seriesModel) {
+        ecModel.eachSeriesByType('bar', function (seriesModel) {
 
             var data = seriesModel.getData();
             var cartesian = seriesModel.coordinateSystem;

src/coord/cartesian/Cartesian2D.js

@@ -22,11 +22,7 @@ define(function(require) {
          *  `[[10, 10], [20, 20], [30, 30]]`
          */
         dataToCoords: function (data) {
-            var array = [];
-            data.each(function (dataItem) {
-                array.push(this.dataToCoord(dataItem));
-            }, this);
-            return array;
+            return data.map(this.dataToCoord, this);
         },
 
         dataToCoord: function (dataItem) {

src/data/List.js

@@ -177,6 +177,17 @@ define(function(require) {
             }
         },
 
+        /**
+         * Data mapping, returned array is flatten
+         */
+        map: function (cb, context) {
+            var ret = [];
+            this.each(function (item, idx) {
+                ret.push(cb && cb.call(context || this, item));
+            }, context);
+            return ret;
+        },
+
         /**
          * In-place filter
          */
@@ -195,17 +206,17 @@ define(function(require) {
         /**
          * In-place map
          */
-        mapInPlace: function (cb, context) {
-            context = context || this;
-            if (this.depth > 1) {
-                createArrayIterWithDepth(
-                    this.depth, this.properties, cb, context, 'map'
-                )(this.elements, 0);
-            }
-            else {
-                this.elements = zrUtil.map(this.elements, cb, context);
-            }
-        },
+        // mapInPlace: function (cb, context) {
+        //     context = context || this;
+        //     if (this.depth > 1) {
+        //         createArrayIterWithDepth(
+        //             this.depth, this.properties, cb, context, 'map'
+        //         )(this.elements, 0);
+        //     }
+        //     else {
+        //         this.elements = zrUtil.map(this.elements, cb, context);
+        //     }
+        // },
 
         /**
          * @return {module:echarts/data/List~Entry}
@@ -249,14 +260,19 @@ define(function(require) {
     };
 
     zrUtil.each(['X', 'Y', 'Z', 'Value'], function (name) {
-        // TODO Map and filter
-        zrUtil.each(['each'], function (iterType) {
-            List.prototype[iterType + name] = function (cb, context) {
-                this[iterType](function (item, idx) {
-                    return cb && cb.call(context || this, item['get' + name](idx));
+        List.prototype['each' + name] = function (cb, context) {
+            this.each(function (item, idx) {
+                cb && cb.call(context || this, item['get' + name](idx));
             }, context);
         };
-        });
+
+        List.prototype['map' + name] = function (cb, context) {
+            var ret = [];
+            this.each(function (item) {
+                ret.push(cb && cb.call(context || this, item['get' + name]()));
+            }, context);
+            return ret;
+        };
     });
 
     List.fromArray = function (data, dimension, parentModel) {