Fix match check to avoid null errors (#373)

ChristopherBiscardi · Apr 23, 2019 · f29ae7f · f29ae7f
1 parent a2b4b63
commit f29ae7f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/packages/mdx-utils/index.js b/packages/mdx-utils/index.js
@@ -14,12 +14,12 @@ exports.preToCodeBlock = preProps => {
       ...props
     } = preProps.children.props;
 
-    const [, match] = className.match(/language-([\0-\uFFFF]*)/);
+    const match = className.match(/language-([\0-\uFFFF]*)/);
 
     return {
       codeString: codeString.trim(),
       className,
-      language: match ? match : "",
+      language: match != null ? match[1] : "",
       ...props
     };
   }