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如何使用 JavaScript 檢查是否點選了按鈕？
以下是使用 JavaScript 檢查按鈕是否被點選的程式碼 −
示例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.result {
font-size: 18px;
font-weight: 500;
color: blueviolet;
}
</style>
</head>
<body onbeforeunload="return pageUnload()">
<h1>Checking whether a Button is clicked using JavaScript</h1>
<div class="result"></div>
<br />
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to check if the button is clicked</h3>
<script>
let BtnEle = document.querySelector(".Btn");
let resEle = document.querySelector(".result");
let clickCount = 0;
BtnEle.addEventListener("click", () => {
clickCount++;
resEle.innerHTML =
"The button has been clicked " + clickCount + " times ";
});
</script>
</body>
</html>輸出
點選按鈕 5 次 -
更新於：18-Jul-2020
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