Izmjenjena struktura, dodan backand

web/node_modules/es5-ext/string/#/count.js

@@ -0,0 +1,15 @@
+"use strict";
+
+var ensureString = require("../../object/validate-stringifiable-value");
+
+module.exports = function (search) {
+	var string = ensureString(this), count = 0, index = 0;
+
+	search = ensureString(search);
+	if (!search) throw new TypeError("Search string cannot be empty");
+	while ((index = string.indexOf(search, index)) !== -1) {
+		++count;
+		index += search.length;
+	}
+	return count;
+};