gather table cell values in last cell's form hidden field

hiddenmojo

jQuery('tr', jQuery(".ht-table").first().find('tbody')).each(function(i,j){
var last=jQuery(j).children().last().get(0);
var form=jQuery(last).find("form");
let l=jQuery("th,td",j);
var temp="<h3>"+jQuery(j).closest("div.single_toggle").find('p.toggler').text()+"</h3>";
	jQuery(l).each((a,b)=>{
		if(jQuery(b).children().length == 0){
			temp += "<p>"+jQuery(j).closest("table").find("thead>tr>th:eq("+a+")").text()+": "+jQuery(b).text()+"</p></br>";			
		}
	});	
jQuery('<input>').attr({
			type: 'hidden',
			name: "postDescriptionHTML",//jQuery(j).closest("table").find("thead>tr>th:eq("+a+")").text(),
			value:"<span>"+temp+"</span>"
		}).appendTo(form);

});