Event target Property

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一個事件的 target 屬性其永遠指向觸發事件的 DOM 物件。

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width">
</head>

<body>
    <button id="btn">click</button>
    <script>
        document.getElementById("btn").addEventListener("click", function (e) {
            e.target.innerText = "clicked";
        });
    </script>
</body>

</html>

 

參考資料：

Event.target

Event.currentTarget