how to check if element exists dom using jquery code example

Example 1: jquery check if element exists

// Check if an element currently exists
if ($('#element').length) {

}

Example 2: jquery test div exists

$(document).ready(function() {
    var $myDiv = $('#DivID');

    if ( $myDiv.length){
        //you can now reuse  $myDiv here, without having to select it again.
    }


});