JavaScript 中 NaN 和 Infinity 示例

以下是使用 JavaScript 实现 NaN 和 Infinity 的代码 −

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: 20px;
      font-weight: 500;
   }
</style>
</head>
<body>
<h1>NaN and Infinity in JavaScript</h1>
<div style="color: green;" class="result"></div>
<button class="btn">CLICK HERE</button>
<h3>
Click on the above button to see nan and infinity example
</h3>
<script>
   let btnEle = document.querySelector(".btn");
   let resEle = document.querySelector(".result");
   btnEle.addEventListener("click", () => {
      resEle.innerHTML = "9/0 = " + 9 / 0 + "<br>";
      resEle.innerHTML += 'Number("AJKL") = ' + Number("AJKL") + "<br>";
   });
</script>
</body>
</html>