Izmjenjena struktura, dodan backand

web/node_modules/array-map/index.js

@@ -0,0 +1,11 @@
+module.exports = function (xs, f) {
+    if (xs.map) return xs.map(f);
+    var res = [];
+    for (var i = 0; i < xs.length; i++) {
+        var x = xs[i];
+        if (hasOwn.call(xs, i)) res.push(f(x, i, xs));
+    }
+    return res;
+};
+
+var hasOwn = Object.prototype.hasOwnProperty;