# LibTmux::WindowLinkSelection::exists

- **Module:** LibTmux
- **Package:** LibTmux
- **Language:** Perl
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-perl/blob/352715a4fa66a96eed7763b90daaa536aa2f121d/packages/core/lib/LibTmux/Selection.pm#L85
- **Inherited from:** LibTmux::Selection
- **Page:** https://libtmux.org/en/perl/latest/reference/libtmux-windowlinkselection-exists/

```
sub exists($self, @criteria)
```

`exists($criteria?)` returns a native Boolean. Empty input returns false. After validating the entire membership, stop at the first matching entity. A reference itself remains true even when empty.

## Methods

## Parameters

- `criteria`