tui.tick.add

tui.tick.add FN

Registers FN to run once per main-loop iteration.

Parameters

• FN: function name, called with no arguments.

Notes

• Adding the same FN twice is a no-op.
• Listeners survive page changes. Remove page-specific listeners with tui.tick.remove, or use tui.every, which is cleared on page change.
• While any listener exists the loop polls input every 0.05 s instead of 0.2 s, so an idle app stays cheap only when nothing is registered.
• Never assign _TUI_TICK_FN for this: it is a single slot, and overwriting it stops other tick users such as tui.exec.
• A listener registered while a plugin loads is removed when that plugin is disabled.

See also: tui.every