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lab 1 -a
table html

<!DOCTYPE html>
<html>
<head>
<title>Simple Table</title>
</head>
<body>
<table border="1">
<tr>
<th>Header 1</th>
<th>Header 2</th>
</tr>
<tr>
<td>Row 1, Cell 1</td>
<td>Row 1, Cell 2</td>
</tr>
<tr>
<td>Row 2, Cell 1</td>
<td>Row 2, Cell 2</td>
</tr>
</table>
</body>
</html>

***********************************************************************************************************************************************

lab 1-b

form html

<!DOCTYPE html>
<html>
<head>
<title>Simple Form</title>
</head>
<body>
<h2>Registration Form</h2>
<form action="process.php" method="post">
<label for="username">Username:</label>
<input type="text" id="username" name="username" required><br><br>

<label for="email">Email:</label>
<input type="email" id="email" name="email" required><br><br>

<label for="password">Password:</label>
<input type="password" id="password" name="password" required><br><br>

<label for="about">About:</label><br>
<textarea id="about" name="about" rows="4" cols="50"></textarea><br><br>

<input type="submit" value="Submit">
</form>
</body>
</html>

************************************************************************************************************************************************

lab 2

inline internal and external css

<!DOCTYPE html>
<html>
<head>
<title>CSS Examples</title>
<style>
/* Internal CSS */
h1 {
color: blue;
}

/* Embedded CSS */
.paragraph {
font-size: 16px;
text-align: center;
}
</style>
</head>
<body>
<h1 style="color: red;">Inline CSS Example</h1>
<p class="paragraph">This is a paragraph with internal and embedded CSS styles.</p>
</body>
</html>

*********************************************************************************************************************************************

lab 3

form using bootstrap

<!DOCTYPE html>
<html>
<head>
<title>Simple Bootstrap Form</title>

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<h2>Registration Form</h2>
<form>
<div class="form-group">
<label for="username">Username:</label>
<input type="text" class="form-control" id="username" name="username" required>
</div>

<div class="form-group">
<label for="email">Email:</label>
<input type="email" class="form-control" id="email" name="email" required>
</div>

<div class="form-group">
<label for="password">Password:</label>
<input type="password" class="form-control" id="password" name="password" required>
</div>

<div class="form-group">
<label for="about">About:</label>
<textarea class="form-control" id="about" name="about" rows="4"></textarea>
</div>

<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>

</body>
</html>

************************************************************************************************************************************************

lab - 4

credential validation js

<!DOCTYPE html>
<html>
<head>
<title>Registration Form</title>
</head>
<body>
<h2>Registration Form</h2>
<form onsubmit="return validateForm()">
<div>
<label for="username">Username:</label>
<input type="text" id="username" name="username" required>
<p id="usernameError" style="color: red;"></p>
</div>

<div>
<label for="email">Email:</label>
<input type="email" id="email" name="email" required>
<p id="emailError" style="color: red;"></p>
</div>

<div>
<label for="password">Password:</label>
<input type="password" id="password" name="password" required>
</div>

<div>
<label for="confirmPassword">Confirm Password:</label>
<input type="password" id="confirmPassword" required>
<p id="passwordError" style="color: red;"></p>
</div>

<button type="submit">Register</button>
</form>

<script>
function validateForm() {
var username = document.getElementById('username').value;
var email = document.getElementById('email').value;
var password = document.getElementById('password').value;
var confirmPassword = document.getElementById('confirmPassword').value;

var usernameError = document.getElementById('usernameError');
var emailError = document.getElementById('emailError');
var passwordError = document.getElementById('passwordError');

// Simple username validation (minimum 3 characters)
if (username.length < 3) {
usernameError.textContent = 'Username must be at least 3 characters.';
return false;
} else {
usernameError.textContent = '';
}

// Simple email validation
if (!isValidEmail(email)) {
emailError.textContent = 'Invalid email address.';
return false;
} else {
emailError.textContent = '';
}

// Password and confirm password validation
if (password !== confirmPassword) {
passwordError.textContent = 'Passwords do not match.';
return false;
} else {
passwordError.textContent = '';
}

return true;
}

function isValidEmail(email) {
// A simple email validation regex
var emailRegex = /S+@S+.S+/;
return emailRegex.test(email);
}
</script>
</body>
</html>

***********************************************************************************************************************************************

lab 5

keyboard and mouse events

<!DOCTYPE html>
<html>
<head>
<title>Keyboard and Mouse Actions</title>
</head>
<body>
<h2>Keyboard and Mouse Actions</h2>


<p>Press any key: <span id="keyPressResult">Press a key...</span></p>
<p>Release a key: <span id="keyReleaseResult">Release a key...</span></p>


<button id="clickButton">Click me</button>
<p id="mouseHoverArea">Hover over this text.</p>

<script>
// Keyboard Actions
document.addEventListener('keydown', function (event) {
document.getElementById('keyPressResult').textContent = `Key pressed: ${event.key}`;
});

document.addEventListener('keyup', function (event) {
document.getElementById('keyReleaseResult').textContent = `Key released: ${event.key}`;
});

// Mouse Actions
document.getElementById('clickButton').addEventListener('click', function () {
alert('Button Clicked!');
});

document.getElementById('mouseHoverArea').addEventListener('mouseenter', function () {
document.getElementById('mouseHoverArea').textContent = 'Mouse is over this text.';
});

document.getElementById('mouseHoverArea').addEventListener('mouseleave', function () {
document.getElementById('mouseHoverArea').textContent = 'Hover over this text.';
});
</script>
</body>
</html>

************************************************************************************************************************************************

lab - 6

<!DOCTYPE html>
<html>
<head>
<title>XMLHttpRequest Example</title>
</head>
<body>
<h2>Retrieve Data from Online Source</h2>
<button id="loadDataButton">Load Data</button>
<div id="output"></div>

<script>
// Function to make an XMLHttpRequest and retrieve data from an online source
function loadData() {
var xhr = new XMLHttpRequest();
xhr.open('GET', 'https://example.com/your-data-url', true);

xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
var responseText = xhr.responseText;
document.getElementById('output').textContent = responseText;
}
};

xhr.send();
}

// Attach the loadData function to the button click event
document.getElementById('loadDataButton').addEventListener('click', loadData);
</script>
</body>
</html>

************************************************************************************************************************************************

lab 9

online validation using jquery

<!DOCTYPE html>
<html>
<head>
<title>jQuery Form Validation</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<h2>Registration Form</h2>
<form id="registrationForm">
<div>
<label for="username">Username:</label>
<input type="text" id="username" name="username">
<p class="error" id="usernameError"></p>
</div>

<div>
<label for="email">Email:</label>
<input type="email" id="email" name="email">
<p class="error" id="emailError"></p>
</div>

<div>
<label for="password">Password:</label>
<input type="password" id="password" name="password">
</div>

<div>
<label for="confirmPassword">Confirm Password:</label>
<input type="password" id="confirmPassword">
<p class="error" id="passwordError"></p>
</div>

<button type="submit">Register</button>
</form>

<button id="submittedAlert" style="display: none">Submitted</button>

<script>
$(document).ready(function () {
$('#registrationForm').submit(function (event) {
event.preventDefault();
if (validateForm()) {
$('#submittedAlert').show();
}
});

function validateForm() {
const username = $('#username').val();
const email = $('#email').val();
const password = $('#password').val();
const confirmPassword = $('#confirmPassword').val();

const errors = $('.error').text('');

if (username.length < 3) {
errors.filter('#usernameError').text('Username must be at least 3 characters.');
}

if (!isValidEmail(email)) {
errors.filter('#emailError').text('Invalid email address.');
}

if (password !== confirmPassword) {
errors.filter('#passwordError').text('Passwords do not match.');
}

return errors.filter('.error:empty').length === 0;
}

function isValidEmail(email) {
const emailRegex = /S+@S+.S+/;
return emailRegex.test(email);
}
});
</script>
</body>
</html>

************************************************************************************************************************************************

lab 10 , 11

simple app using django

cmd:
django-admin startproject mysite

cmd:
python manage.py runserver

change to same dir as manage.py
python manage.py startapp polls

polls/views.py
from django.http import HttpResponse

def index(request):
return HttpResponse("Hello, world. You're at the polls index.")

polls/urls.py
from django.urls import path

from . import views

urlpatterns = [
path("", views.index, name="index"),
]

mysite/urls.py
from django.contrib import admin
from django.urls import include, path

urlpatterns = [
path("polls/", include("polls.urls")),
path("admin/", admin.site.urls),
]

cmd:
python manage.py migrate

polls/models.py
from django.db import models

class Question(models.Model):
question_text = models.CharField(max_length=200)
pub_date = models.DateTimeField("date published")
def __str__(self):
return self.question_text

class Choice(models.Model):
question = models.ForeignKey(Question, on_delete=models.CASCADE)
choice_text = models.CharField(max_length=200)
votes = models.IntegerField(default=0)
def __str__(self):
return self.choice_text

mysite/settings.py
INSTALLED_APPS = [
"polls.apps.PollsConfig", //this wont be available initially, type this inside INSTALLED_APPS
"django.contrib.admin",
"django.contrib.auth",
"django.contrib.contenttypes",
"django.contrib.sessions",
"django.contrib.messages",
"django.contrib.staticfiles",
]

cmd:
python manage.py makemigrations polls

cmd:
python manage.py sqlmigrate polls 0001

cmd:
python manage.py migrate

*imp: ensure u are in right directory
create admin user(cmd):
python manage.py createsuperuser
//set username, pass, email

cmd://start server
python manage.py runserver

***********************************************************************************************************************************************

lab 11

scrapy web scraping

cmd
pip instal scrapy

cmd
scrapy startproject scrapeme_scraper

cmd
cd scrapeme_scraper
scrapy genspider scrapeme scrapeme.live/shop/

scrapeme_spider/spiders/scrapme.py

import scrapy

class ScrapemeSpider(scrapy.Spider):
name = "scrapeme"
allowed_domains = ["scrapeme.live"]
start_urls = ["https://scrapeme.live/shop/"]

def parse(self, response):
# get all HTML product elements
products = response.css(".product")
# iterate over the list of products
for product in products:
# get the two price text nodes (currency + cost) and
# contatenate them
price_text_elements = product.css(".price *::text").getall()
price = "".join(price_text_elements)

# return a generator for the scraped item
yield {
"name": product.css("h2::text").get(),
"image": product.css("img").attrib["src"],
"price": price,
"url": product.css("a").attrib["href"],
}

cmd
scrapy crawl scrapeme -O products.csv
//same dir as scrapme.py spider

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