How to set JavaScript object values dynamically?

JavascriptWeb DevelopmentObject Oriented Programming

Following is the code for setting JavaScript object values dynamically −

Example

 Live Demo

<!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;
      color: blueviolet;
   }
</style>
</head>
<body>
<h1>Set Javascript object values dynamically</h1>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to set student object values dynamically</h3>
<script>
   let resEle = document.querySelector(".result");
   let BtnEle = document.querySelector(".Btn");
   let student = {
      name: "Rohan",
      age: 22,
      displayInfo() {
         return "Name = " + this.name + " : Age = " + this.age + "<br>";
      },
   };
   BtnEle.addEventListener("click", () => {
      resEle.innerHTML = student.displayInfo();
      resEle.innerHTML += "<br>After changing properties <br>";
      student.name = "Shawn";
      student.age = 19;
      resEle.innerHTML += student.displayInfo();
   });
</script>
</body>
</html>

Output

On clicking the ‘CLICK HERE’ button −

raja
Published on 20-Jul-2020 08:00:50
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