From 363723fc84f7b8477592e0105aeb331ec9a017af Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Mon, 14 Aug 2017 05:01:11 +0200
Subject: node_modules

---
 node_modules/es5-ext/optional-chaining.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 node_modules/es5-ext/optional-chaining.js

(limited to 'node_modules/es5-ext/optional-chaining.js')

diff --git a/node_modules/es5-ext/optional-chaining.js b/node_modules/es5-ext/optional-chaining.js
new file mode 100644
index 000000000..f1811279e
--- /dev/null
+++ b/node_modules/es5-ext/optional-chaining.js
@@ -0,0 +1,12 @@
+"use strict";
+
+var isValue = require("./object/is-value");
+
+var slice = Array.prototype.slice;
+
+// eslint-disable-next-line no-unused-vars
+module.exports = function (value, propertyName1 /*, …propertyNamen*/) {
+	var propertyNames = slice.call(arguments, 1), index = 0, length = propertyNames.length;
+	while (isValue(value) && index < length) value = value[propertyNames[index++]];
+	return index === length ? value : undefined;
+};
-- 
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