diff --git a/src/utils/arrayOperation.ts b/src/utils/arrayOperation.ts
new file mode 100644
index 0000000000000000000000000000000000000000..82ad39d0f2dcc0a478ac570c1217948ef7960f42
--- /dev/null
+++ b/src/utils/arrayOperation.ts
@@ -0,0 +1,14 @@
+// Judge whether two array strings are the same
+export function judementSameArr(newArr: unknown[] | string[], oldArr: string[]): boolean {
+	const news = removeDuplicate(newArr);
+	const olds = removeDuplicate(oldArr);
+	let count = 0;
+	const leng = olds.length;
+	for (let i in olds) {
+		for (let j in news) {
+			if (olds[i] === news[j]) count++;
+		}
+	}
+	return count === leng;
+}
+