De-structuring an object without one key

JavascriptWeb DevelopmentObject Oriented Programming

Following is the code to de-structure an object without one key −

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,.sample {
      font-size: 18px;
      font-weight: 500;
      color: rebeccapurple;
   }
   .result {
      color: red;
   }
</style>
</head>
<body>
<h1>De structuring an object without one key.</h1>
<div class="sample">{"firstName":"Rohit","lastName":"Sharma","age":22}</div>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to destructure the above object</h3>
<script>
   let resEle = document.querySelector(".result");
   let obj = {
      firstName: "Rohit",
      lastName: "Sharma",
      age: 22,
   };
   let { firstName, ...restParam } = obj;
   document.querySelector(".Btn").addEventListener("click", () => {
      resEle.innerHTML += "firstName = " + firstName + "<br>";
      resEle.innerHTML += "restParam.lastName = " + restParam.lastName + "<br>";
      resEle.innerHTML += "restParam.age = " + restParam.age + "<br>";
   });
</script>
</body>
</html>

Output

The above code will produce the following output −

On clicking the ‘CLICK HERE’ button −

raja
Published on 18-Jul-2020 07:54:59
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