Fix bug when renaming column the same

Author: mjclawar

dist/core/frame.js

@@ -136,9 +136,6 @@ var DataFrame = function () {
           index += 1;
           var row = {};
           _this3.columns.forEach(function (k) {
-            console.log(k);
-            console.log(_this3);
-            console.log(_this3[k]);
             row[k] = _this3[k].values.get(index);
           });
           return {
@@ -197,7 +194,7 @@ var DataFrame = function () {
         _this4[prevColumn].name = k;
         _this4[k] = _this4[prevColumn];
 
-        delete _this4[prevColumn];
+        if (prevColumn !== k) delete _this4[prevColumn];
       });
       this._columns = columns;
     }

src/es6/core/frame.js

@@ -77,9 +77,6 @@ export default class DataFrame {
         index += 1;
         const row = {};
         this.columns.forEach((k) => {
-          console.log(k);
-          console.log(this);
-          console.log(this[k]);
           row[k] = this[k].values.get(index);
         });
         return {
@@ -115,7 +112,8 @@ export default class DataFrame {
       this[prevColumn].name = k;
       this[k] = this[prevColumn];
 
-      delete this[prevColumn];
+      if (prevColumn !== k)
+        delete this[prevColumn];
     });
     this._columns = columns;
   }

src/js/core/frame.js

@@ -136,9 +136,6 @@ var DataFrame = function () {
           index += 1;
           var row = {};
           _this3.columns.forEach(function (k) {
-            console.log(k);
-            console.log(_this3);
-            console.log(_this3[k]);
             row[k] = _this3[k].values.get(index);
           });
           return {
@@ -197,7 +194,7 @@ var DataFrame = function () {
         _this4[prevColumn].name = k;
         _this4[k] = _this4[prevColumn];
 
-        delete _this4[prevColumn];
+        if (prevColumn !== k) delete _this4[prevColumn];
       });
       this._columns = columns;
     }