Validating div in body with jQuery

Question

Using jQuery, how can I validate if a div exists in body of a HTML page or not?

Answer 1

For the presence of any div:

if ($("div").length > 0) {
  // theres a div
}

Or a particular element with an ID:

if ($("#id").length > 0) {
  // it exists
}

Answer 2

var divExists = !!$('div').length;