A Boolean system variable that's true if any key is currently pressed and false if not.
Examples
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Related References
key
A String system variable that contains the value of the last key typed.
keyCode
A Number system variable that contains the code of the last key typed.
keyIsDown
Returns true if the key it’s checking is pressed and false if not.
keyIsPressed
A Boolean system variable that's true if any key is currently pressed and false if not.