$("body").on("touchstart", function(e) {
    e.preventDefault();
    startX = e.originalEvent.changedTouches[0].pageX,
    startY = e.originalEvent.changedTouches[0].pageY;
  });
  $("body").on("touchmove", function(e) {
    e.preventDefault();
    moveEndX = e.originalEvent.changedTouches[0].pageX,
    moveEndY = e.originalEvent.changedTouches[0].pageY,
    X = moveEndX - startX,
    Y = moveEndY - startY;

    if ( Math.abs(X) > Math.abs(Y) && X > 0 ) {
      alert("left 2 right");
    }
    else if ( Math.abs(X) > Math.abs(Y) && X < 0 ) {
      alert("right 2 left");
    }
    else if ( Math.abs(Y) > Math.abs(X) && Y > 0) {
      alert("top 2 bottom");
    }
    else if ( Math.abs(Y) > Math.abs(X) && Y < 0 ) {
      alert("bottom 2 top");
    }
    else{
      alert("just touch");
    }
  });

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