The values returned by functions are evaluated inside expressions using operators. The type of operator used depends upon the data type of the value the function returns.

Data typeOperator
any data type
  • Equal to: '=='

  • Not equal to: '!='

  • Null: 'empty'

  • Not null: 'not empty'

dates and numbers
  • Less than: '<'

  • Greater than: '>'

  • Less than or equal to: '<='

  • Greater than or equal to: '>='

  • Starts with: 'startswith'

  • Ends with: 'endswith'

  • Contains: 'contains'

  • Contains, ignoring upper or lowercase: 'containsignorecase'

  • Regular expression: 'regex'