X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph.js;h=da2a11a5d7594b210738deedbac280b115b7aa2c;hb=e6b0b7c295a1c3838817744e4548c52bbbdf051f;hp=c07fe359407a9d85a57a92551541049fe7e5b6a4;hpb=cb1261cb98109a857f5d8db64893c98ac31cfee5;p=dygraphs.git

diff --git a/dygraph.js b/dygraph.js
index c07fe35..da2a11a 100644
--- a/dygraph.js
+++ b/dygraph.js
@@ -61,17 +61,15 @@
  * whether the input data contains error ranges. For a complete list of
  * options, see http://dygraphs.com/options.html.
  */
-var Dygraph = function(div, data, opts) {
-  if (arguments.length > 0) {
-    if (arguments.length == 4) {
-      // Old versions of dygraphs took in the series labels as a constructor
-      // parameter. This doesn't make sense anymore, but it's easy to continue
-      // to support this usage.
-      this.warn("Using deprecated four-argument dygraph constructor");
-      this.__old_init__(div, data, arguments[2], arguments[3]);
-    } else {
-      this.__init__(div, data, opts);
-    }
+var Dygraph = function(div, data, opts, opt_fourth_param) {
+  if (opt_fourth_param !== undefined) {
+    // Old versions of dygraphs took in the series labels as a constructor
+    // parameter. This doesn't make sense anymore, but it's easy to continue
+    // to support this usage.
+    this.warn("Using deprecated four-argument dygraph constructor");
+    this.__old_init__(div, data, opts, opt_fourth_param);
+  } else {
+    this.__init__(div, data, opts);
   }
 };