使用 JavaScript 中的 for 循环在空对象中设置属性。

以下是使用 JavaScript 中的 for 循环在空对象中设置属性的代码 −

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;
   }
   .result {
      font-size: 18px;
      font-weight: 500;
      color: rebeccapurple;
   }
</style>
</head>
<body>
<h1>Setting property in an empty object using for loop</h1>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to populate the empty object obj1</h3>
<script>
   let resEle = document.querySelector(".result");
   let BtnEle = document.querySelector(".Btn");
   let obj = {
      firstName: "Rohan",
      lastName: "Sharma",
      age: 14,
      class: 8,
   };
   let obj1 = {};
   BtnEle.addEventListener("click", () => {
      for (let i in obj) {
         obj1[i] = obj[i];
      }
      for (let i in obj1) {
         resEle.innerHTML += "key = " + i + " : Value = " + obj1[i] + "<br>";
      }
   });
</script>
</body>
</html>