fix(markdown): null check for code.lang (#4307)

prettier · Apr 13, 2018 · c814a9f · c814a9f
1 parent 47cb5ad
commit c814a9f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/language-markdown/embed.js b/src/language-markdown/embed.js
@@ -12,7 +12,7 @@ const markAsRoot = docBuilders.markAsRoot;
 function embed(path, print, textToDoc, options) {
   const node = path.getValue();
 
-  if (node.type === "code") {
+  if (node.type === "code" && node.lang !== null) {
     // only look for the first string so as to support [markdown-preview-enhanced](https://shd101wyy.github.io/markdown-preview-enhanced/#/code-chunk)
     const lang = node.lang.split(/\s/, 1)[0];
     const parser = getParserName(lang);