How to access global variable in catalog client scripts?

[John_123_Snow]

I'm trying to create a global variable in a Catalog Client Script, available for all other client scripts to access:

var globalVar = '';

function onLoad() {

	var ajax = new GlideAjax('TestScriptInclude');
	ajax.addParam('sysparm_name', 'returnProperty');
	ajax.getXMLAnswer(function(answer) {
		globalVar = answer;
	});

}

This onLoad client script calls to the server and gets an array of values that I need for other client scripts to use with onChange and onSubmit.

How do I set this up correctly and access it in my other catalog client scripts?

[SanjivMeher]

So instead of var globalVar = ''; you just need to use globalVar = '';

[Alok Das]

Hi John,

Global variable can be defined in client script and called using g_scratchpad object but it does not work for service catalog form.

Please find the below snipped and related HI link below:

https://hi.service-now.com/kb_view.do?sysparm_article=KB0749175

Kindly mark my answer as Correct and Helpful based on the impact.

Regards,

Alok

[Hitoshi Ozawa · Accepted solution]

Be sure to uncheck "Isolate script" on all scripts using global variable.

1. Declare global variable in onLoad.
   
2. Set value onChange script.
   
3. Can use it on other onChange script
   

Execution output:

[John_123_Snow]

BINGO x 100! Thanks you so much!

[Eleven Jane]

This works! Amazing. Thank you so much! My question is I do not understand why we have to declare the global variable onLoad, assign a new value onChange 1, then use it at onChange 2. I tried to declare the global variable at onLoad, then use it at another onChange but it does not work though.