Nested de-structuring in JavaScript.

Javascript Web Development Object Oriented Programming

Following is the code for nested de-structuring in JavaScript −

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;
   }
   .sample,.result {
      font-size: 18px;
      font-weight: 500;
      color: red;
   }
   .result {
      color: rebeccapurple;
   }
</style>
</head>
<body>
<h1>Nested de-structuring in JavaScript.</h1>
<div><pre class="sample"></pre></div>
<div><pre class="result"></pre></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to destructure the above nested array and object</h3>
<script>
   let sampleEle = document.querySelector(".sample");
   let resultEle = document.querySelector(".result");
   let obj = {
      Name: {
         firstName: "Rohan",
         lastName: "Sharma",
      },
      age: 22,
   };
   let arr = [22, 33, ["a", "b"]];
   sampleEle.innerHTML = '{Name:{firstName: "Rohan", lastName: "Sharma"},age: 22} <br>';
   sampleEle.innerHTML += "[22,33,['a','b']";
   let {
      Name: { firstName, lastName },
      age,
   } = obj;
   let a, b, c, d;
   [a, b, [c, d]] = arr;
   document.querySelector(".Btn").addEventListener("click", () => {
      resultEle.innerHTML += `firstName=${firstName} lastName=${lastName} age=${age}
      '<br>`;
      resultEle.innerHTML += `a=${a} b=${b} c=${c} d=${d} '<br>`;
   });
</script>
</body>
</html>