From 79d19c7c74bfa50cdc7bae845b3d98076ef6c13e Mon Sep 17 00:00:00 2001
From: DungGramer <dung.dev.gramer@gmail.com>
Date: Tue, 28 Oct 2025 17:02:36 +0700
Subject: [PATCH] add differenceInArrays

---
 src/differenceInArrays.js | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 src/differenceInArrays.js

diff --git a/src/differenceInArrays.js b/src/differenceInArrays.js
new file mode 100644
index 0000000..df115bf
--- /dev/null
+++ b/src/differenceInArrays.js
@@ -0,0 +1,4 @@
+const differenceInArrays = (array1, array2) =>  {
+    const set = new Set(array2);
+    return array1.filter(x => !set.has(x));
+};
\ No newline at end of file