Variable Exists

Tests Variable Exists using the configured inputs. Its Boolean result selects whether the If body runs; it does not assign a numeric result.

Where to find it

If → Choose Operation → Variables. Requires Dev access to configure, then a successful compile to activate.

Inputs

Input	Type	Role	Requirement	Default / constraint
Variable	Compatible declared type	Variable binding	Required	Required

Result and behavior

Returns a Boolean test for If.

Configuration example

Block: If
Operation: Variable Exists
Variable: Private Compatible declared type result

Use this as an editor configuration: declare any Variables/collections first and choose real locations/eligible targets for your plot. It is not pasteable source code.

Restrictions and troubleshooting

Required inputs must be assigned and type-compatible. Operation work remains subject to the plot’s runtime limits.

Related guides

Editor · Arguments · Targets · Expressions · Native behavior

Reference identifier: variable.is_assigned.