What is the use of 'message' field in client script??

[rm3]

Hi all, i am new to service now, just wanted to know what is the use of 'message' field in the Client script form. Please clarify this with a simple example if possible...

[Community Alums]

@Mark Roethof

Thank you for your answer. I get a little bit confused that beside the messages field if you hover on the "?" you get the instruction mentioning  "one per line" as the image below. 

Follow you should we use the enter or line break ?

Thank you in advance !

[Mark Roethof]

Indeed, one per line, with separated with an enter.

An example from our environment:

Kind regards,
Mark

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[Community Alums]

Thank you @Mark Roethof 

[Martijn Odijk]

The content of the Message field is not required. If you use getMessage() in the code, it will get the correct Message from the sys_ui_message table and display that to the user even if the Message field is empty.

My guess is that it should still be used though: when a script is loaded from the server, I think that the messages are loaded with it; This prevents a server roundtrip when a message has to be displayed to the user, so it is good for performance.