Client Side Messages i18N.format

[Jon23]

I am trying to use i18.format method in a catalog client script but having no luck.  

Initially trying the example in the documentation and outputting an alert message using a Catalog onChange script:

var info_message = nowapi.g_i18n.format("The {p1} {p2} {p3} was very very {p1}",{p1: "rich", p2: "young", p3: "ruler"});
alert(info_message);

Console log shows 'nowapi is not defined'.

Where am i going wrong?

[Jim Coyne · Accepted solution]

The documentation does not specify, but it seems like it only works in the fulfiller UI forms view only, and NOT in the Service Catalog nor the Service Portals.

"Normal" form view:

Catalog Item in Fulfiller view:

(throws error in the browser console)

Catalog Item in a Service Portal:

I could only find the function used in 5 oob Client Scripts.  I only use it in 1 of my UI Actions ("Set Name from Source Table" Tool).  Kinda limiting.