Equivalent to the string "up".
# Metadata
Platforms: desktop, server, mobile OS: mac, windows, linux, ios, android Introduced: 1.0 Security:
# Syntax
up
# Examples
if the shiftKey is up then beep
wait while the mouse is up
# Description
Use the up constant to indicate the state of a mouse button or modifier key, or in an arrowKey handler.
# Tags
ui,
# See
- **keyword:** string - **constant:** left, down - **message:** arrowKey - **command:** constant - **function:** commandKey, altKey, controlKey - **glossary:** mouse button, modifier key, handler