Client Script why can't use g_form.getQueryParameter

[KelvinY2025]

function onLoad() {
var myparam = g_form.getQueryParameter('myparam');

....
}

why ? 
(g_env) [SCRIPT:EXEC] Error while running Client Script "Incident Demo01": TypeError: g_form.getQueryParameter is not a function

how to do ?

[palanikumar]

I think it is getParameter. Try this code

function onLoad() {
var myparam = g_form.getParameter('myparam');

....
}

[SumanthDosapati]

@KelvinY2025 

The g_form.getQueryParameter() method is not a standard or documented method in ServiceNow's g_form API. The correct and widely used method for retrieving URL query parameters in client-side scripts is g_form.getParameter(). 

Accept the solution and mark as helpful if it does, to benefit future readers.
Regards,
Sumanth

[adityahubli]

Hello @KelvinY2025 ,

In ServiceNow, g_form =ONLY form fields control. It does not read URL parameters. 

g_form.getQueryParameter() does not exist — that’s why you are getting:

TypeError: g_form.getQueryParameter is not a function

Correct method to access parameters,

function onLoad() {
var myparam = g_url.getParameter('myparam');
console.log(myparam);
}

If this helps you then mark it as helpful and accept as solution for future queries.

Regards,

Aditya

[Sarthak Kashyap]

Hi @KelvinY2025 ,

User below code to retrieve query parameters from the URL

var myparam = g_form.getParameter("sysparm_myparam");

Please mark my answer correct and helpful if this works for you

Thanks and Regards,

Sarthak