<!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 REST API Problem Details with RFC 9457, application/problem+json, standard members, validation errors, type URIs, and secure examples.
Learn Laravel Pennant feature flags to control rollouts, scope features, use Blade directives, store values, test flags, and manage releases.
Learn HTML hidden until found to create searchable collapsed content with fragment links, beforematch events, fallbacks, and examples.
Learn Docker Compose Watch to sync files, rebuild images, restart services, configure ignore rules, and improve container development.
Learn CSS @scope to contain component styles, define scope roots and limits, use :scope, handle proximity, and add compatible fallbacks.
Learn Python type hints to annotate variables, functions, lists, dictionaries, optional values, aliases, and improve code clarity.
Learn MySQL generated columns to compute values from expressions using virtual and stored columns, indexes, and practical examples.
Learn HTML dialog element to create native modal and non-modal dialogs with show(), showModal(), close(), forms, and examples.
Learn CSS :has() selector to style parent elements based on child content, form state, and nearby elements with clear examples.
Learn JavaScript Temporal API to handle dates, times, durations, and time zones with clearer and safer code than Date.
Learn CSS scroll-driven animations with scroll and view timelines, animation ranges, accessible fallbacks, and a runnable progress indicator example.
Learn Java sealed classes and interfaces with permits, final, sealed, and non-sealed subclasses, package rules, reflection, and practical examples.
Learn Python structural pattern matching with match and case, sequence, mapping, class, OR, and guarded patterns, plus common mistakes and examples.
Learn MySQL JSON_TABLE to convert JSON arrays and objects into relational rows with typed columns, ordinality, nested paths, and error handling.
Learn HTML Invoker Commands to control dialogs and popovers declaratively with command and commandfor, including custom commands and accessible examples.
Learn CSS anchor positioning with named anchors, position-area, anchor functions, sizing, fallbacks, and a complete responsive example.
Learn Java pattern matching for switch with type patterns, guards, null handling, dominance, sealed classes, records, and exhaustiveness.
Learn Python asyncio TaskGroup for structured concurrency, task results, cancellation, exception groups, nested tasks, timeouts, and cleanup.
Learn MySQL window functions with OVER, PARTITION BY, ordering, frames, ranking, running totals, LAG, LEAD, and named windows.