Merge pull request #350 from jmcarp/d3v3-compat-merge

Skip call to selection.merge if undefined.
dagrejs · Jan 13, 2019 · 5450627 · 5450627
2 parents c00ac0b + f7351d9
commit 5450627
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/create-edge-paths.js b/lib/create-edge-paths.js
@@ -14,7 +14,7 @@ function createEdgePaths(selection, g, arrows) {
   var newPaths = enter(previousPaths, g);
   exit(previousPaths, g);
 
-  var svgPaths = previousPaths.merge(newPaths);
+  var svgPaths = previousPaths.merge !== undefined ? previousPaths.merge(newPaths) : previousPaths;
   util.applyTransition(svgPaths, g)
     .style("opacity", 1);