# `res.location()`

Sets the "Location" response header to the specified URL expression (`url`).

### Usage
```usage
res.location(url);
```

### Example
```javascript
res.location('/foo/bar');
res.location('foo/bar');
res.location('http://example.com');
res.location('../login');
res.location('back');
```

### Notes
>+ You can use the same kind of URL expressions as in `res.redirect()`.











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