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Form field: exists

Available since: 1.0.0

Looks up the current form structure whether a specified field exists.


Field name

The input name of the form field. This is mostly found in the "name" attribute of an <input> form element. For submit buttons within content forms: Use "submit" for the labeled "Save" button, and "preview" for the labeled "Preview" button.
This field supports tokens.

Negate the condition

Negates the condition. Makes TRUE to FALSE and vice versa.