How to import All data from a JS to another JS file

Suppose I have:
main.js

$('.logo').click(function(){
      window.location.reload();
 });

 $('.check-availaibility').click(function(){
         $("html, body").animate({'scrollTop':'0'}, "slow");
   });

$('#pincode').on("click",function(){
   $('#pincode').val(null);
 }); 

min.js

var proto = Flickity.prototype;

Flickity.createMethods.push('_createFade');

proto._createFade = function() {
  this.fadeIndex = this.selectedIndex;
  this.prevSelectedIndex = this.selectedIndex;
  this.on( 'select', this.onSelectFade );
  this.on( 'dragEnd', this.onDragEndFade );
  this.on( 'settle', this.onSettleFade );
  this.on( 'activate', this.onActivateFade );
  this.on( 'deactivate', this.onDeactivateFade );
};

var updateSlides = proto.updateSlides;
proto.updateSlides = function() {
  updateSlides.apply( this, arguments );
  if ( !this.options.fade ) {
    return;
  }
  // set initial opacity
  this.slides.forEach( function( slide, i ) {
    var alpha = i == this.selectedIndex ? 1 : 0;
    slide.setOpacity( alpha );
  }, this );
};

I want to import all the data from min.js and main.js to
master.js

import * from  './min.js';
import * from  './main.js';

How can i do that. I was trying the above statements. But it's not working.