> For the complete documentation index, see [llms.txt](https://lodash.shujuwajue.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lodash.shujuwajue.com/function/unary.md).

# \_.unary

**语法：**

```javascript
_.unary(func)
```

**源代码链接：**[source](https://github.com/lodash/lodash/blob/4.17.10/lodash.js#L10929)

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

**描述：**

创建一个最多接受一个参数的函数，忽略多余的参数。

**开始版本：**4.0.0

**参数：**

* `func (Function)`: 要处理的函数。

**返回值：**

* `(Function)`: 返回新函数。

**例子：**

```javascript
_.map(['6', '8', '10'], _.unary(parseInt));
// => [6, 8, 10]
```