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EventListener.html
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EventListener.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<div id="wrap">
<button id="btn">click</button>
</div>
<script>
const btnDom = document.getElementById("btn");
const wrap = document.getElementById("wrap");
const body = document.body;
btnDom.addEventListener("click", (e) => {
console.log("btnDom click1", e);
});
wrap.addEventListener("click", () => {
console.log("wrap");
});
body.addEventListener(
"click",
(e) => {
console.log("body capture");
// console.log(body);
},
true
);
btnDom.addEventListener(
"click",
(e) => {
console.log("btnDom click2 capture", e);
},
true
);
btnDom.addEventListener("click", (e) => {
console.log("btnDom click3", e);
});
/*
body capture
btnDom click2 capture
btnDom click1
btnDom click3
wrap
*/
</script>
</body>
</html>