com-tools/doc/api/com-tools.pathstring.md

com-tools 提供了一些通用的工具函数；

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## pathString() function

将路径数组转成路径字符串

**Signature:**

```typescript
export declare function pathString(path: (string | number | null | undefined)[], separator?: string | null, placeholder?: string | null): string;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

path


</td><td>

(string \| number \| null \| undefined)\[\]


</td><td>

路径数组


</td></tr>
<tr><td>

separator


</td><td>

string \| null


</td><td>

_(Optional)_ 分隔符，默认是 "/"


</td></tr>
<tr><td>

placeholder


</td><td>

string \| null


</td><td>

_(Optional)_ 占位符，默认是 "-"


</td></tr>
</tbody></table>
**Returns:**

string


## Remarks

会自动将数组尾部的空值给移除，中间的空值转为占位符 placeholder