How to make proper shuffle collection in backbone?

Question

JavaScript

First, I unload the models from the server into the collection and render. Then, according to the DOM event, it is necessary to mix the models in the collection and draw again, instead of the previous ones.
I googled this code on the internet:

AppCollection.on("add"  , onUpdateItem );

   $( document ).bind("keyup", function(e){
    if( e.keyCode === 13 ) {
       var shuffledCopy = AppCollection.clone().shuffle();
       $("body").html("");
       AppCollection.reset().add( shuffledCopy );
     }
   })

Answer 1

Do you really need to shuffle the collection? Maybe it's enough to bring it out in a mixed form?