Merge branch 'fix-classed-remove' of git://github.com/jasondavies/d3 …

…into 2.9.7
hanfeisun · Jul 31, 2012 · e74a925 · e74a925
2 parents 151d5fe + fe80362
commit e74a925
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Showing 3 changed files with 11 additions and 7 deletions.
diff --git a/d3.v2.js b/d3.v2.js
@@ -1670,9 +1670,11 @@ function d3_selection_classed(name, value) {
     var c = this.className,
         cb = c.baseVal != null,
         cv = cb ? c.baseVal : c;
-    cv = d3_collapse(cv.replace(re, " "));
-    if (cb) c.baseVal = cv;
-    else this.className = cv;
+    if (cv) {
+      cv = d3_collapse(cv.replace(re, " "));
+      if (cb) c.baseVal = cv;
+      else this.className = cv;
+    }
   }
 
   function classedFunction() {