X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph.js;h=941badb9a01edcf41444d34330d35825a1808470;hb=421427956b54e7c1bea26f6865eaf007d406a2d2;hp=2580556d2aced1722e62aa807331839184add6c2;hpb=8d9704289c9e6fab5bb88fb6a8529c83e0973742;p=dygraphs.git

diff --git a/dygraph.js b/dygraph.js
index 2580556..941badb 100644
--- a/dygraph.js
+++ b/dygraph.js
@@ -993,10 +993,13 @@ Dygraph.prototype.destroy = function() {
     }
   };
 
-  for (var idx = 0; idx < this.registeredEvents_.length; idx++) {
-    var reg = this.registeredEvents_[idx];
-    Dygraph.removeEvent(reg.elem, reg.type, reg.fn);
+  if (this.registeredEvents_) {
+    for (var idx = 0; idx < this.registeredEvents_.length; idx++) {
+      var reg = this.registeredEvents_[idx];
+      Dygraph.removeEvent(reg.elem, reg.type, reg.fn);
+    }
   }
+
   this.registeredEvents_ = [];
 
   // remove mouse event handlers (This may not be necessary anymore)
@@ -1282,7 +1285,7 @@ Dygraph.prototype.createDragInterface_ = function() {
   // This happens when the graph is resized.
   if (this.mouseUpHandler_) {
     Dygraph.removeEvent(document, 'mouseup', this.mouseUpHandler_);
-  };
+  }
 
   // If the user releases the mouse button during a drag, but not over the
   // canvas, then it doesn't count as a zooming action.
@@ -2500,6 +2503,10 @@ Dygraph.prototype.axisPropertiesForSeries = function(series) {
  * This fills in the valueRange and ticks fields in each entry of this.axes_.
  */
 Dygraph.prototype.computeYAxisRanges_ = function(extremes) {
+  
+  var isNullUndefinedOrNaN = function(num) {
+    return isNaN(parseFloat(num));
+  };
   var series;
   var numAxes = this.attributes_.numAxes();
 
@@ -2572,7 +2579,10 @@ Dygraph.prototype.computeYAxisRanges_ = function(extremes) {
       axis.computedValueRange = [axis.valueWindow[0], axis.valueWindow[1]];
     } else if (axis.valueRange) {
       // This is a user-set value range for this axis.
-      axis.computedValueRange = [axis.valueRange[0], axis.valueRange[1]];
+      axis.computedValueRange = [
+         isNullUndefinedOrNaN(axis.valueRange[0]) ? axis.extremeRange[0] : axis.valueRange[0],
+         isNullUndefinedOrNaN(axis.valueRange[1]) ? axis.extremeRange[1] : axis.valueRange[1]
+      ];
     } else {
       axis.computedValueRange = axis.extremeRange;
     }