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Capture two events in two overlapped elements

I have two divs that are overlapped with two mouse-events. Is it possible to capture both events? I’m only able to capture A or B, but not A and B at the same time.

function adown() {
  console.log('A')
}

function bdown() {
  console.log('B')
}
#a {
  pointer-events: all;
  width: 200px;
  height: 200px;
  background: red;
  position: absolute;
}

#b {
  pointer-events: all;
  width: 200px;
  height: 200px;
  background: blue;
  position: absolute;
  opacity: 0.5;
  top: 50px;
  left: 50px;
}
<div id="a" onmousedown="adown()"></div>
<div id="b" onmousedown="bdown()"></div>

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Answer

As mentioned in the comments, you can use document.elementsFromPoints(x,y) where x and y are from mouseposition on the document onclick event. Then, just “filter” the elements by wrapping them up in a div, in this code with id canvas. And lastly, just console.log their id.

As you can see in this snippet:

document.addEventListener("click", function(){
    let els = document.elementsFromPoint(event.clientX, event.clientY);
    els.forEach(function(el){
        if(document.querySelector("#canvas").contains(el)){
            console.log(el.id);
        }
    });
});
#A {
    pointer-events: all;
    width: 200px;
    height: 200px;
    background:red;
    position: absolute;
}
#B {
    pointer-events: all;
    width: 200px;
    height: 200px;
    background:blue;
    position: absolute;
    opacity: 0.5;
    top: 50px;
    left:50px;
}
<div id="canvas">
<div id="A"></div>
<div id="B"></div>
</div>
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