Magento – Magento 2: specify jquery version for external js library

Rather than using $ to show your slideshow...do the following

jQuery(document).ready(function($){
             jQuery('#target').slideshow();
        });

If you are adding your custom js library other than jQuery then you need to include the js code inside require function like:

 require(['jquery', 'jquery/ui'], function($){ 
     //your js code here  
 });

Examples:

Inside the require function, you can directly access jQuery functionality in place by using either jQuery or its short form alias, the dollar $ sign. For example:

require(['jquery', 'jquery/ui'], function($){
  jQuery(document).ready( function() {
    alert("Page loaded.");
  });
});

Here is an example with the $ alias:

require(['jquery', 'jquery/ui'], function($){
  $(document).ready( function() {
    alert("Page loaded.");
  });
});