### JavaScript Array Methods: pop()#### pop()The `pop()` method removes the last element from an array.The return value of the `pop()` method is the removed item.```html JavaScript Array Methods pop() The pop() method removes the last element from an array. The return value of the pop() method is the removed item. ```#### ExplanationThe above code demonstrates the use of the JavaScript `pop()` method, which is used to remove the last element from an array. Here's the breakdown:1. An array `fruits` is defined with the elements `["Banana", "Orange", "Apple", "Mango"]`.2. The content of this array is displayed in a paragraph element with the id `demo1`.3. The `.pop()` method is called on the `fruits` array, removing the last element (`"Mango"`) and returning its value to be displayed in a paragraph element with the id `demo2`.4. The `.shift()` method is also called on the `fruits` array, removing the first element (`"Banana"`) and returning its value to be displayed in a paragraph element with the id `demo3`.**Expected Output:**- **demo1:** `Banana,Orange,Apple` (After removal of "Mango")- **demo2:** `Mango` (The element removed by `pop()`)- **demo3:** `Banana` (The element removed by `shift()`)

As per the requirement program is executed. Please find the output.

3- Determine the output of the following code JavaScript Array Methods pop() The pop() method removes the last element from an array. The return value of the pop() method is the removed item. = fruits; = fruits.pop(); = fruits.shift();

3- Determine the output of the following code JavaScript Array Methods pop() The pop() method removes the last element from an array. The return value of the pop() method is the removed item. = fruits; = fruits.pop(); = fruits.shift();

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Passing Array as Argument

An array is a data structure that holds only fixed-size data and its contents are arranged in contiguous memory slots. The primary purpose of using an array is to store data items of the identical type together. An array can stockpile any one of the following types of data: int, float, char and so forth. The elements are stored from index 0, and the difference between the two indexes of the array is termed as an offset. The array has a fixed size. Once the size is defined during array declaration, it cannot be changed later.

Question

### JavaScript Array Methods: pop()

#### pop()

The `pop()` method removes the last element from an array.

The return value of the `pop()` method is the removed item.

```html
<!DOCTYPE html>
<html>
<head>
</head>
<body>

<h2>JavaScript Array Methods</h2>

<h2>pop()</h2>

<p>The pop() method removes the last element from an array.</p>

<p>The return value of the pop() method is the removed item.</p>

<p id="demo1"></p>
<p id="demo2"></p>
<p id="demo3"></p>

<script>
var fruits = ["Banana", "Orange", "Apple", "Mango"];
document.getElementById("demo1").innerHTML = fruits;
document.getElementById("demo2").innerHTML = fruits.pop();
document.getElementById("demo3").innerHTML = fruits.shift();
</script>

</body>
</html>
```

#### Explanation
The above code demonstrates the use of the JavaScript `pop()` method, which is used to remove the last element from an array. Here's the breakdown:

1. An array `fruits` is defined with the elements `["Banana", "Orange", "Apple", "Mango"]`.
2. The content of this array is displayed in a paragraph element with the id `demo1`.
3. The `.pop()` method is called on the `fruits` array, removing the last element (`"Mango"`) and returning its value to be displayed in a paragraph element with the id `demo2`.
4. The `.shift()` method is also called on the `fruits` array, removing the first element (`"Banana"`) and returning its value to be displayed in a paragraph element with the id `demo3`.

**Expected Output:**
- **demo1:** `Banana,Orange,Apple` (After removal of "Mango")
- **demo2:** `Mango` (The element removed by `pop()`)
- **demo3:** `Banana` (The element removed by `shift()`)

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