How to return a value from a function strictly after scrolling the entire page?

Question

JavaScript

I use not a phantom as in tags, but a slimer (not in tags), because you can see what is happening.
I want the value to return after all ScrollTo, but it returns much earlier. How to do it right?
ScrollTo - jquery plugin

page.evaluate(function() {

             		

  function unique(arr) {
      var obj = {};
      for(var i=0; i<arr.length; i++) {
          var str = arr[i];
          obj[str] = true; 
      }
      return Object.keys(obj); 
  }


  function getLinks(){

    var links = new Array();

    var collect = $('div.coefficient__more > a');

    	collect.each(function(index, element){
          links.push($(element).attr('href'))
    });

    return links;

  }

  var hrefs = new Array();
  var num;
  var dl = 500;



  $(window).queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).scrollTo("10%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("20%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("30%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("40%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("50%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("60%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("70%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("80%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("90%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  }).delay(dl).scrollTo("100%").queue(function() {

    hrefs = hrefs.concat(getLinks());
    $(this).dequeue();

  });



  return unique(hrefs);


}