How do i pass value to a callback function

Ravish Shetty · ‎03-04-2015

Hello all,

Is there a way to pass value to the callback function when we use GlideAjax.

function onChange (){
var temp = '123';

var x = new GlideAjax ('ABC');
x.addParam ('sysparm_name','123');
x.getXML(callBack,temp);
}

function callBack (response,temp){
alert(temp);
}

Here i want to pass the value of variable temp to the callback function without declaring it as a global variable.

edwin_munoz · ‎03-04-2015

Hello Ravio,

You can do it with a closure:

function onChange(){


         var temp = '123';


         var x = new GlideAjax('ABC');


         x.addParam ('sysparm_name', '123');


         x.getXML( function (response) { callback (response, temp); });


}




function callBack (response, temp){


         alert(temp);


}

View solution in original post

sathish_anoor · ‎06-07-2022

@edwin.munoz . Thank you so much!

The SN Nerd · ‎03-04-2015

Not being aware of Edwin's method, I would have done this by adding parameter "sysparm_temp" with the variable temp and returned it back in the Ajax script include.

I can post some code if you would find it helpful, although Edwin's solution is much cleaner.

ServiceNow Nerd
ServiceNow Developer MVP 2020-2022
ServiceNow Community MVP 2019-2022

Kalaiarasan Pus · ‎03-04-2015

Is your code not working?As I remember using the way you have specified

Ravish Shetty · ‎03-05-2015

Hi Kalai,

The syntax in which i have specified in the question doesn't work.