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When I click on my a-tag, I do not want the parent's event to trigger. If the child had a normal event listener, it could be prevented by event.stopPropagation(), but how do I do it when there is no "event"?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="parent" style="width:100px; height:100px; background-color: red">
<a id="child" href="https://i.kym-cdn.com/entries/icons/facebook/000/013/564/doge.jpg">Text</a>
</div>
<script>
document.getElementById("parent").addEventListener("click", function () {
alert("Oh no, you clicked me!");
});
</script>
<script src="test.js"></script>
</body>
</html>
669
Simply add a click listener to the link, on which you do event.stopPropagation();. This will prevent the click on the child to bubble (and thus, trigger a click on the parent).
document.getElementById("parent").addEventListener("click", function() {
console.log('parent received click');
});
document.getElementById("child").addEventListener("click", function(e) {
e.preventDefault(); // this line prevents changing to the URL of the link href
e.stopPropagation(); // this line prevents the link click from bubbling
console.log('child clicked');
});<div id="parent" style="width:100px; height:100px; background-color: red">
<a id="child" href="https://i.kym-cdn.com/entries/icons/facebook/000/013/564/doge.jpg">Text</a>
</div>If the child had a normal event listener, it could be prevented by event.stopPropagation()
Yes.
but how do I do it when there is no "event"?
There is an event. You are just not listening for it.
You could solve the problem by listening on the child element:
document.getElementById("parent").addEventListener("click", function() {
alert("Oh no, you clicked me!");
});
document.querySelector("a").addEventListener("click", function(e) {
e.stopPropagation();
});<div id="parent" style="width:100px; height:100px; padding: 1em; background-color: #aaa">
<a id="child" href="https://placeimg.com/200/200/nature/sepia">Text</a>
</div>Alternatively, you could check the target of the event and see if it is unacceptable.
const blacklist = [document.querySelector("a")];
document.getElementById("parent").addEventListener("click", function(e) {
if (blacklist.includes(e.target)) {
return;
}
alert("Oh no, you clicked me!");
});<div id="parent" style="width:100px; height:100px; padding: 1em; background-color: #aaa">
<a id="child" href="https://placeimg.com/200/200/nature/sepia">Text</a>
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