test if jquery exists code example

Example 1: 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.
    }


});

Example 2: jquery check if exist

if ( $( "#myDiv" ).length ) {
 
    $( "#myDiv" ).show();
 
}