fix: avoid type error with undefined variable

pagarme · Apr 24, 2018 · 9774ef1 · 9774ef1
1 parent 9bf9d02
commit 9774ef1
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/index.js b/lib/index.js
@@ -151,6 +151,8 @@ LivePatch.prototype._patch = function(type, value) {
 	var top = this.stack[this.stack.length - 1];
 	var parent = this.stack[this.stack.length - 2];
 
+  if (!top) return
+
 	if (top.type == 'array') {
 		parent = top;
 		this._pushKey(parent.counter.toString());