freeCodeCamp/guide/chinese/certifications/information-security-and-quality-assurance/quality-assurance-and-testing-with-chai/test-if-an-object-is-an-instance-of-a-constructor/index.md

---
title: Test if an Object is an Instance of a Constructor
localeTitle: 测试对象是否是构造函数的实例
---
## 测试对象是否是构造函数的实例

这是一个存根。 [帮助我们的社区扩展它](https://github.com/freecodecamp/guides/tree/master/src/pages/certifications/information-security-and-quality-assurance/quality-assurance-and-testing-with-chai/test-if-an-object-is-an-instance-of-a-constructor/index.md) 。

[这种快速风格指南有助于确保您的拉取请求被接受](https://github.com/freecodecamp/guides/blob/master/README.md) 。