question How to test a piece of javascript quickly? in Developer forum

How to test a piece of javascript quickly?

Lei Wang3 — Sat, 03 Dec 2022 14:51:58 GMT

How to test a piece of javascript quickly?

Do you have to test it in client ui policy or business rule? fix script? which is quick and convenient? for example, to query GlideRecord?

Re: How to test a piece of javascript quickly?

Raghav Sharma24 — Sat, 03 Dec 2022 15:02:47 GMT

Background script is the quickest and easiest.

Please mark the answer correct/helpful accordingly.

Re: How to test a piece of javascript quickly?

Mike_R — Sat, 03 Dec 2022 15:20:43 GMT

For server side - background scripts.
For client side - JavaScript executor.

Re: How to test a piece of javascript quickly?

Lei Wang3 — Sat, 03 Dec 2022 16:25:16 GMT

how to access JS executor from NOW? or where is it?

Re: How to test a piece of javascript quickly?

Mike_R — Sat, 03 Dec 2022 16:27:06 GMT

On any form or list view,

press and hold Alt+Ctrl+Shift+j

Re: How to test a piece of javascript quickly?

Lei Wang3 — Sat, 03 Dec 2022 16:37:21 GMT

that works, thanks!

can I save background script to rerun it again? right now, after running one time, it only gives a history link

Re: How to test a piece of javascript quickly?

Mike_R — Sat, 03 Dec 2022 16:39:23 GMT

No problem!

If you want to save a server side script to run it on demand, you can create a fix script

https://docs.servicenow.com/bundle/tokyo-application-development/page/build/applications/task/t_CreateFixScripts.html

Re: How to test a piece of javascript quickly?

Lei Wang3 — Sat, 03 Dec 2022 16:41:49 GMT

from the javascript execute, I tried to run the following code. but looks like nothing happens after clicking run. anything wrong with my code?

var gr = new GlideRecord('incident');
gr.addQuery('active', true);
gr.query();

while(gr.next()) {
alert('Incident count: ' + gr.getRowCount());
}

Re: How to test a piece of javascript quickly?

Raghav Sharma24 — Sat, 03 Dec 2022 16:45:18 GMT

If you want to save the script and rerun it, fix script is the best.

For client side execute script in javascript executor.

Re: How to test a piece of javascript quickly?

Raghav Sharma24 — Sat, 03 Dec 2022 16:47:18 GMT

This is because you are trying to run server side code in javascript executor, you need to run client code here.

Re: How to test a piece of javascript quickly?

Mike_R — Sat, 03 Dec 2022 16:47:29 GMT

Javascript Executor is only for client-side code, and you shouldn't use GlideRecord in client-side code.

If you are just trying to test the js executor, try this simple line

alert("Hello from the Javascript Executor");

To learn more about scripting, I highly recommend this

https://developer.servicenow.com/dev.do#!/learn/courses/tokyo/app_store_learnv2_scripting_tokyo_scripting_in_servicenow

and

https://www.youtube.com/watch?v=62Nabpb94Jw

Re: How to test a piece of javascript quickly?

Lei Wang3 — Sat, 03 Dec 2022 18:19:23 GMT

I may not be able to remember this shortkey. Is there a way to open the executor in menu item?

Re: How to test a piece of javascript quickly?

Mike_R — Sat, 03 Dec 2022 19:30:50 GMT

Unfortunately no