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# \_.join（转字符串，类php-implode）

**语法：**

```javascript
_.join(array, [separator=','])
```

**源代码链接：**[source](https://github.com/lodash/lodash/blob/4.17.10/lodash.js#L7591)

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

**描述：**

将`array`中的所有元素转换为由`separator`分隔的字符串。

**开始版本：**4.0.0

**参数：**

* `array (Array)`: 要转换的数组。
* `[separator=','] (string)`: 分隔元素。 

**返回值：**

* `(string)`: 返回连接字符串。

**例子：**

```javascript
_.join(['a', 'b', 'c'], '~');
// => 'a~b~c'
```