How to add css class to the variable

Hi Webix team,

In my scenario, I am doing push of items into a variable and adding $css to each item but my concern here is to add css class after the completing the push operation to the variable.

please find the below code snippet we tried:

var colHeaders = [];
this.columns.forEach(function(col){
	if (col.hidden != undefined && !col.hidden)
		colHeaders.push({"id":col.id,"value":col.header, $css:"unCheckMenu"});
	}
);
webix.html.addCss(this,"scrollMenuItems");

Please let us know is there any way to add the css class to the variable defined.

Thanks in advance

Regards,
Deepak Eepa