# types.SplitOptions.direction

- **Module:** types.SplitOptions
- **Package:** @libtmux/libtmux
- **Language:** TypeScript
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-ts/blob/2cb93308200da38a26b59876618116850f110607/packages/libtmux/src/types.ts#L270
- **Page:** https://libtmux.org/reference/ts/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. When both this and `vertical` are given, this one decides.