# selection.StringFilter

- **Module:** selection
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-ts/blob/3fe1ca654b81b8cbf4a13b777a001a3298c87a6f/packages/libtmux/src/selection.ts#L68
- **Page:** https://libtmux.org/en/ts/latest/reference/selection-stringfilter/

A text comparison, of which exactly one form must be given.

Written as a union so the type rejects `{}` — criteria that constrain
nothing would match everything, which is never what a caller meant.