Moving two rectangles with transition

Using the following code, I can move two rectangles together with a transition, but after moving the two rectangles together, one of the rectangles moves from bottom to top again.

<script>
var rectangles = document.getElementsByClassName("rectangle");

for (var i = 0; i < rectangles.length; i++) {
  var rectangle = rectangles[i];
  var upButton = rectangle.getElementsByClassName("up")[0];
  var downButton = rectangle.getElementsByClassName("down")[0];

  upButton.addEventListener("click", function() {
    moveFile(this.parentNode, "up");
  });

  downButton.addEventListener("click", function() {
    moveFile(this.parentNode, "down");
  });
}

function moveFile(currentRectangle, direction) {
  var siblingRectangle = direction === "up" ? currentRectangle.previousElementSibling : currentRectangle.nextElementSibling;

  if (siblingRectangle) {
    currentRectangle.classList.add(direction === "up" ? "move-up" : "move-down");
    siblingRectangle.classList.add(direction === "up" ? "move-down" : "move-up");

    setTimeout(function() {
      if (direction === "up") {
        currentRectangle.parentNode.insertBefore(currentRectangle, siblingRectangle);
      } else {
        currentRectangle.parentNode.insertBefore(siblingRectangle, currentRectangle);
      }
      currentRectangle.classList.remove(direction === "up" ? "move-up" : "move-down");
      siblingRectangle.classList.remove(direction === "up" ? "move-down" : "move-up");
    }, 1000);
  }
}
</script>

How to remove this extra movement?

Via Active questions tagged javascript - Stack Overflow https://ift.tt/hgO1cxB

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