if was there show box and if data was no in input thn hide a box using jquery code example

Example 1: hidden jquery

$('#yourid').attr('hidden', false);
$('#yourid').attr('hidden', true);

Example 2: save action hide element in jquery

$(function() {
    if (Cookies.get('RemoveCount') == 'true' && Cookies.get('RemoveCount') != 'undefined') {
        $("#count").hide();
    } else {
        $("#count").show();
    }
}