JavaScript 无穷大属性

如果浮点数超过最大限制，JavaScript 无穷大属性会显示无穷大；如果浮点数低于最小限制，则会显示负无穷大。

以下是 JavaScript 无穷大属性的代码 -

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;
   }
   .num {
      font-size: 18px;
      font-weight: 500;
   }
</style>
</head>
<body>
<h1>JavaScript Infinity property</h1>
<div class="num">1.797693134862315E+10308</div>
<div class="num">-1.797693134862315E+10308</div>
<button class="Btn">CLICK HERE</button>
<h3>
Click on the above button to add and subtract the above floating numbers
by 1 respectively
</h3>
<script>
   let sampleEle = document.querySelector(".sample");
   let num1 = document.querySelectorAll(".num")[0];
   let num2 = document.querySelectorAll(".num")[1];
   document.querySelector(".Btn").addEventListener("click", () => {
      num1.innerHTML = +num1.innerHTML + 1;
      num2.innerHTML = +num2.innerHTML - 1;
   });
</script>
</body>
</html>