[Tip] Shortcut for the opposite

by David Workman
Data Mosaic

There are a number of element properties that are either true or false. Enabled, transparent, & visible come to mind. Quite often you will find yourself toggling these element properties:

if (elements.btn_push.visible) {
    elements.btn_push.visible = false
}
else {
    elements.btn_push.visible = true
}

The following line is a shortcut for the above code:

elements.btn_push.visible = !elements.btn_push.visible

This trick also works with global boolean type variables. You set a global variable to boolean type by designating it as a media type. You can then assign that variable a true or false value in a method:

globals.myBoolean = true

To set it to the opposite value then:

globals.myBoolean = !globals.myBoolean

Same goes for variables defined in methods:

var x = true

application.output(x = !x)