https://makandracards.com/makandra/1339-check-whether-an-element-is-visible-or-hidden-with-javascript

https://community.servicenow.com/community?id=community\_question&sys\_id=345507addbd8dbc01dcaf3231f961998

https://community.servicenow.com/community?id=community\_question&sys\_id=0acc2842db7bdb801cd8a345ca9619b5

https://community.servicenow.com/community?id=community\_question&sys\_id=5e9d0f2ddb9cdbc01dcaf3231f961911

var allVariables = document.getElementById('variable_map').getElementsByTagName('item'); for (var i = 0; i < allVariables.length; i++) { var item = allVariables[i]; var itemName = item.getAttribute('qname').toString(); //alert(item.id); var item_el = document.getElementById(g_form.resolveNameMap(itemName)); //alert(itemName + ' ' + window.getComputedStyle(item_el).display); var iWidth = (item_el.offsetWidth); var iHeight = (item_el.offsetHeight); if (iWidth == 0 && iHeight == 0) { //alert("blanking item " + itemName); g_form.setValue(itemName, ''); } } $("variable_map").querySelectorAll("item").forEach(function(item) { var variable = item.getAttribute("qname"); alert(variable); }); //--classic UI (if needed)--unfortunately g_form.isVisible doesnt work in classic if (g_form.getValue('sn_request_type' == 'Bulk') || g_form.getValue('sn_request_type' == 'Deactivate')) { var allVariables = document.getElementById('variable_map').getElementsByTagName('item'); for (var i = 0; i < allVariables.length; i++) { try { var item = allVariables[i]; var itemName = item.getAttribute('qname').toString(); //alert(item.id); var item_el = document.getElementById(g_form.resolveNameMap(itemName)); alert(itemName + ': ' + g_form.resolveNameMap(itemName)); //alert(itemName + ' ' + window.getComputedStyle(item_el).display); var iWidth = (item_el.offsetWidth); var iHeight = (item_el.offsetHeight); if (iWidth == 0 && iHeight == 0 && g_form.getValue(itemName) != 'true') { //--be wary of checkboxes //alert("blanking item " + itemName); if (g_form.getValue('sn_request_type' == 'Deactivate')) { if (itemName != 'sn_service_offering_to_deactivate') { //--be wary of reference fields g_form.setValue(itemName, ''); } } else { g_form.setValue(itemName, ''); } } } catch (ex) { } } } }

Haven't tested these all recently within global/local scopes, so feel free to have a play! option 1 use an encoded query embedded in the GlideRecord , e.g. var grProf = new GlideRecord ( 'x_cls_clear_skye_i_profile' ); grProf . addQuery ( 'status=1^ owner=NULL ' ); grProf . query (); even better use the glideRecord addNotNullQuery or addNullQuery option 2 JSUtil.nil / notNil (this might be the most powerful. See this link ) example: if ( current . operation () == 'insert' && JSUtil . notNil ( current . parent ) && ! current . work_effort . nil ()) option 3 there might be times when you need to get inside the GlideRecord and perform the check there, for example if the code goes down 2 optional routes depending on null / not null can use gs.nil : var grAppr = new GlideRecord ( 'sysapproval_approver' ); var grUser = new GlideRecord ( 'sys_user' ); if ( grUser . get ( 'sys_id' , current . approver )){

Classic UI : var sURL_editparam = gs . action . getGlideURI (). getMap (). get ( ' sysparm_aparameter ' ); if ( sURL_editparam == 'true' ) { gs . addInfoMessage ( 'parameter passed ); } Portal : var sURL_editparam = $sp . getParameter ( " sysparm_aparameter " ); if ( sURL_editparam == 'true' ) { gs . addInfoMessage ( 'parameter passed ); }

Call a script include to apply a reference qualifier on a catalog item variable: - variable reference qualifier dependent on another variable selection, in this case a variable referencing sys_user (requested_for) On the catalog item form. variable name to apply ref qual filter : retail_equipment variable reference qualifier (on cmdb table ): javascript : new refqual_functions (). lostStolen_getAssignedCIs (); client-callable script include ( refqual_functions) function : lostStolen_getAssignedCIs : function (){ //--called from variable set client script, for lost/stolen request (service catalog) gs . log ( current . variables . requested_for , 'retail_lostStolen_getAssignedCIs' ); return ( 'install_statusNOT IN8,7owned_by=' + current . variables . requested_for ); //owned_by=1269b79937f1060041c5616043990e41install_statusNOT IN8,7 },