Fix a bug which occurs when the heading has no children (#34)

* Fix a bug which occurs when the heading has no children ```TypeError: Cannot read property 'type' of undefined```
medfreeman · Mar 23, 2017 · d00ce1b · d00ce1b
1 parent 64a3eb3
commit d00ce1b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/index.js b/src/index.js
@@ -171,7 +171,8 @@ export default function(md, options) {
 
       if (heading.type === "inline") {
         let content
-        if (heading.children && heading.children[0].type === "link_open") {
+        if (heading.children.length > 0 &&
+            heading.children[0].type === "link_open") {
           // headings that contain links have to be processed
           // differently since nested links aren't allowed in markdown
           content = heading.children[1].content