show hidden element jquery code example

Example 1: element is hidden jquery

// Checks CSS content for display:[none|block], ignores visibility:[true|false]
$(element).is(":visible");

// The same works with hidden
$(element).is(":hidden");

Example 2: hidden jquery

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

Example 3: attr hidden to show jquery

$(':checkbox').change(function(){
    $('#delete').removeAttr('hidden');
});