Merge pull request #122 from TooBug/patch-1

处理插入代码时出现undefined的情况
sofish · Nov 22, 2014 · 44d75cc · 44d75cc
2 parents 0d940bc + 186e66c
commit 44d75cc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/pen.js b/src/pen.js
@@ -135,7 +135,7 @@
   }
 
   function commandWrap(ctx, tag, value) {
-    value = '<' + tag + '>' + value + '</' + tag + '>';
+    value = '<' + tag + '>' + (value||'') + '</' + tag + '>';
     return commandOverall(ctx, 'insertHTML', value);
   }