Check for undefined in hasKeys

dmjio · Mar 26, 2018 · 0f0efff · 0f0efff
1 parent ecd720a
commit 0f0efff
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/jsbits/diff.js b/jsbits/diff.js
@@ -139,7 +139,7 @@ function diffCss(cCss, nCss, node) {
 }
 
 function hasKeys(ns, cs) {
-    return ns.length > 0 && cs.length > 0 && ns[0].key !== null && cs[0].key !== null;
+    return ns.length > 0 && cs.length > 0 && ns[0].key != null && cs[0].key != null;
 }
 
 function diffChildren(cs, ns, parent, doc) {