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
Related questions
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()`)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fad1b3f56-a3c9-4d59-9a30-165fb680e6c9%2Fedae3fdf-272a-44c1-a743-9b430f469063%2Fo3skxgd_processed.png&w=3840&q=75)
Transcribed Image Text:### 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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