Check JavaScript version in server-side

[mloobo]

Hi all,

I would like to know where, in my ServiceNow instance, I can check the JavaScript engine version that is running in the server side.

Thank you.

Regards,

Marcos.

[P_ Senthil Nath]

Hi Marcos,

You can check the JavaScript engine version from the "My Company Application" module, there if you open any of the application you can see JavaScript Mode. 

Thanks & Regards,

P. Senthil Nathan.

[ajaylimaye]

Hi Priyadarshini,

Below link has the information related to the JavaScript engine on Jakarta Version:

JavaScript engine upgrade

You can find the JavaSAcript engine based on your instance version on https://docs.servicenow.com/   or wiki.

[mloobo]

Hi Ajay,

Thank you for your answer. Could you provide the exact links for each ServiceNow version?

Regards,

Marcos.

[ajaylimaye]

Hi Marcos,

I guess after Geneva the JavaScript engine is based upon Rhino version 1.7 R5.

You can refer this link for more information

JavaScript engine upgrade

I searched in Helsinki and Istanbul for JavaScript engine information. It had similar information.

[TylerTeter]

Ajay is correct, they're essentially the same for every version on the docs site. Here are the links for every supported version.

Kingston - N/A

Jakarta JavaScript engine upgrade

Istanbul JavaScript engine upgrade

Helsinki JavaScript engine upgrade

Geneva - N/A

Here is a blog entry announcing it for Helsinki - ECMAScript 5 in ServiceNow Helsinki!

I can personally confirm functions like String.prototype.trim() which are ECMAScript 5.1 doesn't work in my Jakarta Patch 5 instance. Feel free to try yourself. String.prototype.trim() - JavaScript | MDN Maybe once I have more time I'll test some later version ECMAScript functions as well.

Also I believe ServiceNow isn't even on the latest version of Prototype.js (what they use for script include definitions). Since we don't have access to the newer stuff. http://prototypejs.org/learn/

http://prototypejs.org/learn/

You're probably aware for client scripts, you're limited to the user's browser supportability also, for instance String.prototype.contains() may not work in IE but does in Chrome.

Just my speculation - it'll probably be at least London until we see another script engine improvement.