diff --git a/README.md b/README.md
index f0a7e80..85246ce 100644
--- a/README.md
+++ b/README.md
@@ -33,4 +33,8 @@
 5. [有时间限制的Promise对象](src/promiseandtime/promise-time-limit.ts)
 6. [有时间限制的缓存](src/promiseandtime/cache-with-time-limit.ts)
 7. [函数防抖](src/promiseandtime/debounce.ts)
-8. [并行执行异步函数](src/promiseandtime/execute-asynchronous-functions-in-parallel.ts)
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+8. [并行执行异步函数](src/promiseandtime/execute-asynchronous-functions-in-parallel.ts)
+
+## JSON
+
+1. [判断对象是否为空](src/json/is-object-empty.ts)
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diff --git a/src/json/is-object-empty.ts b/src/json/is-object-empty.ts
new file mode 100644
index 0000000..a0d53e4
--- /dev/null
+++ b/src/json/is-object-empty.ts
@@ -0,0 +1,18 @@
+type JSONValue = null | boolean | number | string | JSONValue[] | { [key: string]: JSONValue };
+type Obj = Record<string, JSONValue> | JSONValue[]
+
+/**
+ * 给定一个对象或数组，判断它是否为空。
+ *
+ * 一个空对象不包含任何键值对。
+ * 一个空数组不包含任何元素。
+ * 你可以假设对象或数组是通过 JSON.parse 解析得到的。
+ * @link https://leetcode.cn/problems/is-object-empty/description/?envType=study-plan-v2&envId=30-days-of-javascript
+ * @param obj
+ */
+export function isEmpty(obj: Obj): boolean {
+    for (const _ in obj) {
+        return false;
+    }
+    return true;
+}
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diff --git a/test/json/is-object-empty.test.ts b/test/json/is-object-empty.test.ts
new file mode 100644
index 0000000..d0f0f4e
--- /dev/null
+++ b/test/json/is-object-empty.test.ts
@@ -0,0 +1,14 @@
+import {describe, expect, test} from "vitest";
+import {isEmpty} from "@/json/is-object-empty";
+
+describe('Test object is empty', () => {
+    test('Test case 1', () => {
+        expect(isEmpty({"x": 5, "y": 42})).toBeFalsy()
+    })
+    test('Test case 2', () => {
+        expect(isEmpty({})).toBeTruthy()
+    })
+    test('Test case 3', () => {
+        expect(isEmpty([null, false, 0])).toBeFalsy()
+    })
+})
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