Inserts value a into the list b, but only if it is not already contained, otherwise the list remains unchanged.
The return value always is value a.
Parameters
Parameter | Description |
|---|---|
a | Value to be added. |
b | Name of the list (if the list does not exist, it is created). Default: "default". |
c | (optional) "true", if values with set Empty Flag should not be added to the list. Default: "false". Note: Please note that if the parameter is set to "false", values with a set Empty Flag (hidden values) are added to the list. |
Example
Parameter a | Parameter b | Parameter c | Result | Value added to list |
|---|---|---|---|---|
Hallo (Empty Flag: false) | MyList | Hallo | Yes. | |
Hallo (Empty Flag: false) | MyList | Hallo | No, because value already exists in list. | |
Hello (Empty Flag: true) | MyList | false | Hello | Yes. |
Hällo (Empty Flag: true) | MyList | true | Hällo | No. |