example plugin: add data-example-id only if it's been supplied. (#2…

…4127)
twbs · Sep 27, 2017 · 6dd3d91 · 6dd3d91
1 parent 1d6a6c2
commit 6dd3d91
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/_plugins/example.rb b/_plugins/example.rb
@@ -34,7 +34,7 @@ def initialize(tag_name, markup, tokens)
 
   #{markup}
 
-Valid syntax: example <lang>
+Valid syntax: example <lang> [id=foo]
 eos
         end
       end
@@ -55,7 +55,7 @@ def render(context)
       end
 
       def example(output)
-        "<div class=\"bd-example\" data-example-id=\"#{@options[:id]}\">\n#{output}\n</div>"
+        "<div class=\"bd-example\"" + (@options[:id] ? " data-example-id=\"#{@options[:id]}\"" : "") + ">\n#{output}\n</div>"
       end
 
       def remove_holderjs(code)