diff --git a/quartz/util/function.ts b/quartz/util/function.ts
new file mode 100644
index 0000000000000..7cba701df8649
--- /dev/null
+++ b/quartz/util/function.ts
@@ -0,0 +1,16 @@
+import { secretPage } from "../../quartz.layout";
+import { FileNode, Options } from "../components/ExplorerNode"
+
+export const sortFn: Options["sortFn"] = (a: FileNode, b: FileNode) => {
+	if (a.order && b.order) {
+		return a.order - b.order;
+	} else if (a.order) {
+		return -1;
+	}
+	return 1;
+};
+
+
+export const filterFn = (node: FileNode) => {
+	return !secretPage.has(node.name)
+}
\ No newline at end of file