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# appendPathComponent(_:)

Appends a path component to the URL.

```
mutating func appendPathComponent(_ pathComponent: String)
```

## Parameters

`pathComponent`

The path component to add.

## Discussion

> Note:
> This function performs a file system operation to determine if the path component is a directory. If so, it will append a trailing `/`. If you know in advance that the path component is a directory or not, then use `func appendingPathComponent(_:isDirectory:)`.

New code should use [`append(path:directoryHint:)`](/documentation/Foundation/URL/append(path:directoryHint:)) instead of this method.

---

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