npm and error messages

node_modules/es5-ext/array/#/separate.js

@@ -0,0 +1,12 @@
+"use strict";
+
+var forEach = Array.prototype.forEach;
+
+module.exports = function (sep) {
+	var result = [];
+	forEach.call(this, function (val) {
+		result.push(val, sep);
+	});
+	result.pop();
+	return result;
+};