Clears empty selector after comma (#118)

Author: jesse-deboer

index.js

@@ -43,13 +43,15 @@ function selectors (parent, child) {
     let parentNode = parse(i, parent)
 
     child.selectors.forEach(j => {
-      let node = parse(j, child)
-      let replaced = replace(node, parentNode)
-      if (!replaced) {
-        node.prepend(parser.combinator({ value: ' ' }))
-        node.prepend(parentNode.clone())
+      if (j.length) {
+        let node = parse(j, child)
+        let replaced = replace(node, parentNode)
+        if (!replaced) {
+          node.prepend(parser.combinator({ value: ' ' }))
+          node.prepend(parentNode.clone())
+        }
+        result.push(node.toString())
       }
-      result.push(node.toString())
     })
   })
   return result

index.test.js

@@ -133,6 +133,10 @@ it('processes comma inside', () => {
   run('a, b { .one, .two {} }', 'a .one, a .two, b .one, b .two {}')
 })
 
+it('clears empty selector after comma', () => {
+  run('a, b { .one, .two, {} }', 'a .one, a .two, b .one, b .two {}')
+})
+
 it('moves comment with rule', () => {
   run('a { /*B*/ b {} }', '/*B*/ a b {}')
 })