Merge pull request #5 from masx200/masx200-patch-1

Create index.ts

Author: masx200

intersection-of-two-arrays/index.ts

@@ -0,0 +1,4 @@
+export default function intersection(nums1: number[], nums2: number[]): number[] {
+const set=new Set(nums2)
+return Array.from(new Set(nums1.filter(a=>set.has(a))))
+}