$('#tree1').treed();
Initialization optional parameters$('#tree2').treed({openedClass : 'fa-folder-open', closedClass : 'fa-folder'});
$('#tree2').treed({openedClass : 'fa-folder-open', closedClass : 'fa-folder'});
Initialization optional parameters$('#tree3').treed({openedClass:'fas fa-minus', closedClass:'fas fa-plus'});
$('#tree3').treed({openedClass:'fas fa-minus', closedClass:'fas fa-plus'});