# types.SplitOptions.direction

- **Module:** types.SplitOptions
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-ts/blob/3fe1ca654b81b8cbf4a13b777a001a3298c87a6f/packages/libtmux/src/types.ts#L270
- **Page:** https://libtmux.org/en/ts/latest/reference/types-splitoptions-direction/

Which side of this pane the new one takes.

tmux splits below by default and offers no other way to say "above" or
"left" than pairing the axis with `-b`, so a boolean cannot express half
of the choices. Combining this with `vertical` throws `TypeError`.