How to use try catch in ServiceNow Scripts

[andymcdonald]

I attended Steve Bell's advanced GlideRecord session at K16 and I believe there was an incidental comment made about how to properly implement exception handling in SN scripts.   However, I made no note of it and cannot remember exactly what the instructions were.   I believe there was something said about a property that needed to be set...

Anybody who knows the answer to this, please let me know.

As it is now, try catch is ignored and the script just dies.

[Paul Curwen]

If it helps, the K16 Lab documentation mentioned can be found here:

Advanced GlideRecord Scripting (repeat 1 of 2)

Advanced GlideRecord Scripting (repeat 2 of 2)

Some really useful guidance in these.

[andymcdonald]

on this blast from the past, I can say my main issue was a lack of understanding on exactly what causes errors to be thrown in js.   Here's a nice reference I found:

Exceptional Exception Handling in JavaScript — SitePoint