<!DOCTYPE html>
<html>
<head>
<title>Webpage Title</title>
</head>
<body>
<h1>Main Heading</h1>
<p>A paragraph text.</p>
</body>
</html>Learn to style web pages.
body {
background-color: #FFF;
font-size: 16px;
}
h1 {
font-size: 2rem;
}
p {
font-family: Verdana,sans-serif;
}Learn to build interactive web pages.
<button onclick="demoFunc()">Click Me!</button>
<script>
function demoFunc() {
let p = document.getElementById("p");
p.textContent = "You changed this text!";
p.style.fontSize = "20px";
p.style.color = "blue";
}
</script>Learn to build fast and scalable server-side applications with Node.js.
const express = require('express');
const app = express();
app.get('/', (req, res) => {
res.send('Hello Express.js!');
});
app.listen(3000, () => {
console.log('Server running on port 3000');
});
Learn to build dynamic web content.
<?php
echo "Hello, I'm a PHP script!";
function demoFunc()
{
echo "It works.";
echo "Today's date is " . date('Y-m-d');
echo "Have a great day!";
}
demoFunc();
?>Learn to manage and manipulate relational and NoSQL databases efficiently.
-- Retrieve active users
SELECT userID,
CONCAT(firstName, ' ', lastName) AS name,
email,
registrationDate
FROM users
WHERE status = 1;
-- End of query
-- Output: userID, name, email, registrationDateLearn to develop diverse software with simplicity and readability.
def greet():
return '''Welcome to Python!
It's easy to learn.'''
message = greet()
print(message)Learn to create cross-platform applications and enterprise software.
public class Greet {
static String greet() {
return "Welcome to Java!";
}
public static void main(String[] args) {
System.out.println(greet());
System.out.println("It's easy to learn.");
}
}<%@ page contentType="text/html; charset=UTF-8"%>
<html>
<head>
<title>Quick JSP Demo</title>
</head>
<body>
<p>Hello, I'm a JSP script!</p>
<% out.println("Today's date is " + new java.util.Date()); %>
</body>
</html>Learn to create systems software and understand low-level computing.
#include<stdio.h>
int main()
{
printf("First C Program.\n");
return 0;
}Learn to create systems software with object-oriented capabilities.
#include <iostream>
int main()
{
std::cout<<"First C++ Program.";
std::cout<<std::endl<<"Its easy to learn.";
}Learn to structure and exchange data efficiently with JSON and XML.
{
"user": {
"name": "User name",
"active": true
}
<user>
<name>User name</name>
<active>true</active>
</user>
Learn the CSS if() function to choose property values with style, media, and support conditions, plus safe fallbacks and a runnable example.
Learn the HTML dialog closedby attribute to control button, Escape, and outside-click closing, with accessibility guidance and a live example.
Learn JavaScript Uint8Array Base64 and hex methods to encode, decode, inspect, and reuse binary data without manual byte-to-string conversion.
Learn Python 3.14 deferred annotations, forward references, annotationlib formats, compatibility choices, and safe runtime inspection.
Learn PHP 8.5 clone with syntax to copy objects and replace selected properties safely, including readonly value objects, hooks, and validation.
Learn CSS contrast-color() to choose black or white text automatically, add safe fallbacks, and test readable color combinations.
Learn CSS sibling-index() and sibling-count() to style repeated elements by position, calculate totals, and create responsive visual patterns.
Learn JavaScript Promise.try() to convert synchronous values, thrown errors, and promises into one predictable asynchronous workflow.
Learn Python type parameter syntax for generic functions, classes, and aliases with bounds, constraints, and practical Python 3.12+ examples.
Learn the PHP 8.5 pipe operator to build readable transformation chains with functions, closures, methods, clear outputs, and safe error handling.
Learn JavaScript explicit resource management with using, await using, Symbol.dispose, and practical cleanup examples.
Learn PHP asymmetric property visibility with private(set), protected(set), inheritance rules, and practical PHP 8.4 examples.
Learn Git sparse checkout with cone mode, partial clone, sparse index, practical commands, outputs, and safe workflow tips.
Learn MongoDB time series collections with schema design, granularity, TTL retention, queries, aggregation, and practical examples.
Learn Python 3.14 template strings with Template objects, interpolations, custom processors, safe HTML escaping, and clear examples.
Learn JavaScript iterator helpers to filter, transform, limit, and collect data lazily with clear examples and practical performance guidance.
Learn Python tomllib to read TOML configuration files, handle types and errors, and parse decimal values safely with practical examples.
Learn PHP property hooks to validate, normalize, and compute object properties with practical PHP 8.4+ examples and clear restrictions.
Learn Git worktree to work on multiple branches at once, manage linked working trees safely, and avoid repeated clones with practical commands.