jQuery get id of visible element

jQuery code snippet to get id of visible element.

Use the visible selector to get the visible element.

:visible

Use the not selector to get the elements that are not visible.

:not(:visible)

For Example, to get the id of the form that is currently in view.

var $visibleForm = $('form:visible'),
    formId = $visibleForm.attr('id');
console.log(formId);