jquery check is empty code example

Example 1: jquery if null or empty

if (jQuery('#something').val().length != ''){}
or
if (jQuery('#something').val().length != 0){}

Example 2: jquery if div is empty

function isEmpty( el ){
      return !$.trim(el.html())
  }
  if (isEmpty($('#element'))) {
      // do something
  }

Example 3: jquery empty

// Remove all child nodes of the set of matched elements from the DOM
// This method does not accept any arguments.
$("div.parent").empty();