QFQ

QFQ functions only take parameters from the RECORD-STORE. Every variable from the RECORD-STORE passed to the function will be made available inside the function.
In certain use cases, when the RECORD-STORE is not available for example, it would be useful to pass an actual value (like in a typical function) that can be used within the function.
Example from form element field modeSql:
The following code can not be put inside a QFQ function because '{{mef_bef_setting_name_uploadReviewFieldRepresentative:Y}}' can not be used as a parameter. It would first have to be saved into the RECORD-STORE which is not possible inside FE.modeSql.

{{ SELECT gr.value2
    FROM Ggroup AS grP, Ggroup AS grC, Ggroup AS gr, BefApplication AS app, GroupMember AS gm
    WHERE grP.reference = 'mef_bef_applicationType'
      AND grP.id = grC.grId 
      AND grC.value = app.type 
      AND app.id = '{{id:R0}}' 
      AND gm.grId = grC.id 
      AND gm.xId = '{{mef_bef_setting_name_uploadReviewFieldRepresentative:Y}}' 
      AND gm.xId2 = gr.id
}}