UI Action that runs a Client Script then a Server Script

ui_client_and_server.js

/*
UI Action
Action name:reopen_incident
Client: True
Onclick: reopen()
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1005843
Note:
- getFormElement() - Returns the HTML element for the form.
- gsftSubmit()
-- Pass a control (button) or a form and action name if the control does not exist.
-- function gsftSubmit(control, /* optional */ form, /* optional */ action_name)
-- So the control / button is just another UI Action for example:
-- gsftSubmit(gel('sysverb_update'));//This could be used in a UI Action, UI Policy, or UI Script
*/


//Client-side 'onclick'
function reopen(){//Client Side Script
	//Client Script Stuff here
	//alert('DO IT - Client Side Script!');
	//The use case is to TEST the Form and/or validate that the user really want to do this action
	var resp = prompt("Mhhh... this looks sketchy... enter 'Yes' if you are sure!").toLowerCase();
	if(resp == 'yes'){
		//Call this UI Action Again, but this time run the Server Side Code!
		gsftSubmit(null,g_form.getFormElement(),'reopen_incident');//This is the 'Action name' of the UI Action above
	}else{
		alert("Just what I thought, this is too sketchy to submit!");
	}
}

//Code that runs without the 'onclick' function being called
if(typeof window == 'undefined'){//Test javascript for a global varable called 'window'
	serverReopen();//Call Server Side Script!
	/*
	Server work could also be done here like:
	current.update();
	action.setRedirectURL(current);//Stay on the same record
	*/
	}

function serverReopen(){//Server Side Script!
	gs.addInfoMessage("DO IT - Server Side Script!");
}