tagging laravel passing multiple value with span

i was working with my thesis, i got stumble when i tried to store a tag to some uploaded file

ive found some javascript to help me create tags on upload page.

$("#tags input").on({
    focusout : function() {
      var txt = this.value.replace(/[^a-z0-9\+\-\.\#]/ig,''); // allowed characters

      if(txt) {
        $("<span/>", {text:txt.toLowerCase(),value:txt.toLowerCase(), insertBefore:this});
        $("<input/>", {type:"hidden",value:txt.toLowerCase(),name:"Tags", insertBefore:this});
      }
      this.value = "";
    },
    keyup : function(ev) {
      // if: comma|enter (delimit more keyCodes with | pipe)
      if(/(188|13)/.test(ev.which)) $(this).focusout(); 
    }
  });
  $('#tags').on('click', 'span', function() {
    if(confirm("Remove "+ $(this).text() +"?")) $(this).remove(); 
  });

}); 

what if i want to pass multiple tag to my upload controller with this js?

ive tried using input type hidden, but it only pass 1 value at a time, and also, i cant delete the input value, so if im mistaken and delete the tag, the hidden input doesnt get deleted too.

pls help me, Thankyou in advance!

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