javascript - jQuery animate triggers .complete callback 5 times -


can't catch mistake.. please figure out why callback of animate triggers several times.

code below scroll textblock top bottom. "step" of animate moves custom scrollbar...

currenttext.stop().animate({                 top: "-"+textheight+"px"},                  {                        duration: durationofautoscroll,                      step: function(currenttop) {                           var positiony = currenttop;                         if (positiony < curstate.maskheight - curstate.textheight) positiony = curstate.maskheight - curstate.textheight;                         if (positiony > 0) positiony = 0;                         var scrollposition = -positiony * curstate.scrollheight / (curstate.textheight - curstate.maskheight);                         curstate.scrollertop = scrollposition;                         $(".news-text .scroll-bar .scroller").css("top", scrollposition);                     },                     complete: function() {                         //jquery.dequeue(currenttext);                         currenttext.attr("data-state", 0);                         onendscroll();                 }             }             );

this means collection (currenttext) has 5 elements, callback fired once each element, expected behavior.

if that's not want, can create promise object , use done method:

currenttext.stop().animate({     top: "..." }, {     duration: '...',     step: function () {       // ...     }, }).promise().done(function () {     // done });

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