Update x domain when unload in load API - #342

c3.js

@@ -4446,6 +4446,7 @@
         }
 
         function load(targets, args) {
+            if (targets) {
                 // filter loading targets if needed
                 if (args.filter) {
                     targets = targets.filter(args.filter);
@@ -4467,6 +4468,7 @@
                     }
                 });
                 c3.data.targets = c3.data.targets.concat(targets); // add remained
+            }
 
             // Set targets
             updateTargets(c3.data.targets);
@@ -4496,6 +4498,9 @@
             else if (args.columns) {
                 load(convertDataToTargets(convertColumnsToData(args.columns)), args);
             }
+            else {
+                load(null, args);
+            }
         }
 
         function unload(targetIds, done) {

htdocs/samples/data_load.html

@@ -47,6 +47,7 @@
             [120, 160, 230],
             [80, 130, 300],
             [90, 220, 320],
+            [1090, 1220, 1320],
           ]
         });
       },