1 files changed, 11 insertions, 0 deletions
diff --git a/src/util.ts b/src/util.ts
new file mode 100644
index 0000000..fbe87bb
--- /dev/null
+++ b/src/util.ts
@@ -0,0 +1,11 @@
+export function mapNodeList<E extends Element, T>(
+  list: NodeListOf<E>,
+  mapper: (ele: E) => T
+): T[] {
+  const ary: T[] = [];
+  list.forEach((node) => {
+    ary.push(mapper(node));
+  });
+
+  return ary;
+}