# \_.isSet（是否为Set对象）

**语法：**

```javascript
_.isSet(value)
```

**源代码链接：**[source](https://github.com/lodash/lodash/blob/4.17.10/lodash.js#L12115)

**npm包链接：**[npm package](https://www.npmjs.com/package/lodash.isset)

**描述：**

检查 value 是否是一个Set对象。

**开始版本：**4.3.0

**参数：**

* `value (*)`: 要检查的值。

**返回值：**

* `(boolean)`: 如果 value 为一个 set 对象，那么返回 true，否则返回 false。

**例子：**

```javascript
_.isSet(new Set);
// => true

_.isSet(new WeakSet);
// => false
```


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