JavaScriptCollection
diff --git a/‎d3.js‎
Lines changed: 1 addition & 1 deletion b/‎d3.js‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎d3.min.js‎
Lines changed: 1 addition & 1 deletion b/‎d3.min.js‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎src/selection/classed.js‎
Lines changed: 1 addition & 1 deletion b/‎src/selection/classed.js‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎test/selection/classed-test.js‎
Lines changed: 9 additions & 0 deletions b/‎test/selection/classed-test.js‎
Lines changed: 9 additions & 0 deletions
@@ -627,7 +627,7 @@
     return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
   }
   function d3_selection_classes(name) {
-    return name.trim().split(/^|\s+/);
+    return (name + "").trim().split(/^|\s+/);
   }
   function d3_selection_classed(name, value) {
     name = d3_selection_classes(name).map(d3_selection_classedName);
 
@@ -36,7 +36,7 @@ function d3_selection_classedRe(name) {
 }
 
 function d3_selection_classes(name) {
-  return name.trim().split(/^|\s+/);
+  return (name + "").trim().split(/^|\s+/);
 }
 
 // Multiple class names are allowed (e.g., "foo bar").
 
@@ -101,6 +101,15 @@ suite.addBatch({
         assert.equal(body.node().className, "");
         assert.isTrue(body.classed(""));
       },
+      "coerces name to a string": function(body) {
+        body.attr("class", null);
+        body.classed(undefined, true);
+        assert.equal(body.node().className, "undefined");
+        body.classed(null, true);
+        assert.equal(body.node().className, "undefined null");
+        body.classed({toString: function() { return "foo bar"; }}, true);
+        assert.equal(body.node().className, "undefined null foo bar");
+      },
       "accepts a value function returning true or false": function(body) {
         body.attr("class", null);
         body.classed("foo", function() { return true; });
Original file line number	Diff line number	Diff line change
`@@ -627,7 +627,7 @@`
`627`	`627`	`return new RegExp("(?:^\|\\s+)" + d3.requote(name) + "(?:\\s+\|$)", "g");`
`628`	`628`	`}`
`629`	`629`	`function d3_selection_classes(name) {`
`630`		`- return name.trim().split(/^\|\s+/);`
	`630`	`+ return (name + "").trim().split(/^\|\s+/);`
`631`	`631`	`}`
`632`	`632`	`function d3_selection_classed(name, value) {`
`633`	`633`	`name = d3_selection_classes(name).map(d3_selection_classedName);`
Original file line number	Diff line number	Diff line change
`@@ -36,7 +36,7 @@ function d3_selection_classedRe(name) {`
`36`	`36`	`}`
`37`	`37`
`38`	`38`	`function d3_selection_classes(name) {`
`39`		`- return name.trim().split(/^\|\s+/);`
	`39`	`+ return (name + "").trim().split(/^\|\s+/);`
`40`	`40`	`}`
`41`	`41`
`42`	`42`	`// Multiple class names are allowed (e.g., "foo bar").`