Using methods of array on array of JavaScript objects?

Javascript Web Development Object Oriented Programming

Following is the code for using methods of array on array of JavaScript objects −

Example

<!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: rebeccapurple;
   }
</style>
</head>
<body>
<h1>Using methods of array on array of JavaScript objects</h1>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click the above button to apply array methods on array of objects</h3>
<script>
   let BtnEle = document.querySelector(".Btn");
   let arr = [
      {
         name: "Rohan",
         age: 22,
         rollNo: "A12",
      },
      {
         name: "Mohit",
         age: 12,
         rollNo: "B21",
      },
      {
         name: "Shawn",
         age: 18,
         rollNo: "C43",
      },
   ];
   BtnEle.addEventListener("click", () => {
      arr.pop();
      arr.push({ name: "Michael", age: 17, rollNo: "AC9" });
      arr.splice(1, 1);
      console.log(arr);
   });
</script>
</body>
</html>