Izmjenjena struktura, dodan backand

web/node_modules/es5-ext/array/#/exclusion.js

@@ -0,0 +1,31 @@
+"use strict";
+
+var value    = require("../../object/valid-value")
+  , aFrom    = require("../from")
+  , toArray  = require("../to-array")
+  , contains = require("./contains")
+  , byLength = require("./_compare-by-length")
+  , filter   = Array.prototype.filter
+  , push     = Array.prototype.push;
+
+module.exports = function (/* …lists*/) {
+	var lists, seen, result;
+	if (!arguments.length) return aFrom(this);
+	push.apply(lists = [this], arguments);
+	lists.forEach(value);
+	seen = [];
+	result = [];
+	lists.sort(byLength).forEach(function (list) {
+		result = result
+			.filter(function (item) {
+				return !contains.call(list, item);
+			})
+			.concat(
+				filter.call(list, function (item) {
+					return !contains.call(seen, item);
+				})
+			);
+		push.apply(seen, toArray(list));
+	});
+	return result;
+};