build: add jest, tests

tests/removeFromArrayByKeyValue.test.ts

@@ -0,0 +1,29 @@
+import { expect, test } from "@jest/globals";
+import { removeFromArrayByKeyValue } from "../src";
+
+test("removes an object from an array by key-value object", () => {
+  expect(
+    removeFromArrayByKeyValue(
+      [
+        { a: "1", b: "0" },
+        { a: "2", b: "0" },
+        { a: "3", b: "0" },
+      ],
+      { a: "3" },
+    ),
+  ).toMatchObject([
+    { a: "1", b: "0" },
+    { a: "2", b: "0" },
+  ]);
+
+  expect(
+    removeFromArrayByKeyValue(
+      [
+        { a: "1", b: "0" },
+        { a: "2", b: "0" },
+        { a: "3", b: "0" },
+      ],
+      { b: "0" },
+    ),
+  ).toMatchObject([]);
+});