Lenap Lenap - 1 year ago 315
Javascript Question

Rotate div to mouse position

I want to let a div rotate to the point where the mouse will be,

So when my mouse is left it have to show

when my mouse is to the right it have to show

This needs to be in any direction!

Does anyone have a solution?

Answer Source

You can listen for mouse move events to get the position of the cursor. Then, use a rotation transform to make the arrow rotate.

var arrow = document.querySelector("#arrow");
var arrowRects = arrow.getBoundingClientRect();
var arrowX = arrowRects.left + arrowRects.width / 2;
var arrowY = arrowRects.top + arrowRects.height / 2;

addEventListener("mousemove", function(event) {
    arrow.style.transform = "rotate(" + Math.atan2(event.y - arrowY, event.x - arrowX) + "rad)";
body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
<div id="arrow">&gt;</div>