Web Development - HTML, CSS & JavaScript
Learn to code and become a Web Developer with HTML, CSS, JavaScript , Reactjs, Wordpress, PHP, Mern & Nodejs knowledge Managed by: @love_data
Ko'proq ko'rsatish📈 Telegram kanali Web Development - HTML, CSS & JavaScript analitikasi
Web Development - HTML, CSS & JavaScript (@javascript_courses) Ingliz til segmentidagi kanali faol ishtirokchi. Hozirda hamjamiyat 55 647 obunachidan iborat bo'lib, Texnologiyalar & Aralashmalar toifasida 2 313-o'rinni va Hindiston mintaqasida 6 248-o'rinni egallagan.
📊 Auditoriya ko‘rsatkichlari va dinamika
невідомо sanasidan buyon loyiha tez o‘sib, 55 647 obunachiga ega bo‘ldi.
26 Avgust, 2026 dagi oxirgi ma’lumotlarga ko‘ra kanal barqaror faollikka ega. Oxirgi 30 kunda obunachilar soni 322 ga, so‘nggi 24 soatda esa 10 ga o‘zgardi va umumiy qamrov yuqori darajada qolmoqda.
- Tasdiqlash holati: Tasdiqlanmagan
- Jalb etish (ER): Auditoriya o‘rtacha 3.26% darajada jalb etiladi. Nashrdan keyingi dastlabki 24 soatda kontent odatda umumiy obunachilar sonining 1.23% ini tashkil etuvchi reaksiyalarni to‘playdi.
- Post qamrovi: Har bir post o‘rtacha 1 815 marta ko‘riladi; birinchi sutkada odatda 687 ta ko‘rish yig‘iladi.
- Reaksiyalar va o‘zaro ta’sir: Auditoriya faol: har bir postga o‘rtacha 3 ta reaksiya keladi.
- Tematik yo‘nalishlar: Kontent javascript, css, object, html, array kabi asosiy mavzularga jamlangan.
📝 Tavsif va kontent siyosati
Muallif resursni shaxsiy fikrni ifoda etish maydoni sifatida ta’riflaydi:
“Learn to code and become a Web Developer with HTML, CSS, JavaScript , Reactjs, Wordpress, PHP, Mern & Nodejs knowledge
Managed by: @love_data”
Yuqori yangilanish chastotasi (oxirgi ma’lumot 27 Avgust, 2026 da olingan) sababli kanal doimo dolzarb va katta qamrovli bo‘lib qoladi. Analitika auditoriya kontent bilan faol hamkorlik qilishini, uni Texnologiyalar & Aralashmalar toifasidagi muhim ta’sir nuqtasiga aylantirishini ko‘rsatadi.
function Welcome() {
return <h1>Hello, React!</h1>;
}
🧠 Props – Pass data to components
function Greet(props) {
return <h2>Hello, {props.name}!</h2>;
}
<Greet name="Riya" />
💡 State – Store and manage data in a component
import { useState } from 'react';
function Counter() {
const [count, setCount] = useState(0);
return (
<>
<p>Count: {count}</p>
<button onClick={() => setCount(count + 1)}>Add</button>
</>
);
}
3️⃣ Hooks
useState – Manage local state
useEffect – Run side effects (like API calls, DOM updates)
import { useEffect } from 'react';
useEffect(() => {
console.log("Component mounted");
}, []);
4️⃣ JSX
JSX lets you write HTML inside JS.
const element = <h1>Hello World</h1>;
5️⃣ Conditional Rendering
{isLoggedIn ? <Dashboard /> : <Login />}
6️⃣ Lists and Keys
const items = ["Apple", "Banana"];
items.map((item, index) => <li key={index}>{item}</li>);
7️⃣ Event Handling
<button onClick={handleClick}>Click Me</button>
8️⃣ Form Handling
<input value={name} onChange={(e) => setName(e.target.value)} />
9️⃣ React Router (Bonus)
To handle multiple pages
npm install react-router-dom
import { BrowserRouter, Route, Routes } from 'react-router-dom';
🛠 Practice Tasks
✅ Build a counter
✅ Make a TODO app using state
✅ Fetch and display API data
✅ Try routing between 2 pages
💬 Tap ❤️ for more<form id="form">
<input type="text" id="username">
<button>Submit</button>
</form>
JavaScript
const form = document.getElementById("form");
form.addEventListener("submit", (e) => {
const username = document.getElementById("username").value;
if (username === "") {
e.preventDefault();
alert("Username is required");
}
});
✔️ Stops submission if empty
📧 Email Validation Example
Check using pattern.
const email = document.getElementById("email").value;
if (!email.includes("@")) {
alert("Enter valid email");
}
Real projects use regular expressions.
🔐 Password Length Validation
if (password.length < 6) {
alert("Password must be at least 6 characters");
}
🎨 Show Error Message in UI (Better Practice)
HTML
<input type="text" id="username">
<p id="error"></p>
JavaScript
if (username === "") {
error.textContent = "Username required";
}
✔️ Better than alert
✔️ User-friendly
⚠️ Common Beginner Mistakes
• Forgetting preventDefault()
• Using only alerts
• No user feedback
• Weak validation rules
✅ Best Practices
• Validate on both client and server
• Show clear error messages
• Use simple rules first
• Give instant feedback
🧪 Mini Practice Task
• Validate username is not empty
• Check email contains @
• Ensure password length ≥ 6
• Show error message on screen
✅ Mini Practice Task Solution – Try it yourself first
This solution covers all 4 tasks:
✔ Username not empty
✔ Email contains @
✔ Password length ≥ 6
✔ Show error message on screen
📝 HTML
<form id="form">
<input type="text" id="username" placeholder="Enter username">
<input type="text" id="email" placeholder="Enter email">
<input type="password" id="password" placeholder="Enter password">
<p id="error" style="color: red;"></p>
<button type="submit">Submit</button>
</form>
⚡ JavaScript
const form = document.getElementById("form");
const error = document.getElementById("error");
form.addEventListener("submit", (e) => {
const username = document.getElementById("username").value.trim();
const email = document.getElementById("email").value.trim();
const password = document.getElementById("password").value.trim();
error.textContent = ""; // clear previous errors
// Username validation
if (username === "") {
e.preventDefault();
error.textContent = "Username is required";
return;
}
// Email validation
if (!email.includes("@")) {
e.preventDefault();
error.textContent = "Enter a valid email";
return;
}
// Password validation
if (password.length < 6) {
e.preventDefault();
error.textContent = "Password must be at least 6 characters";
return;
}
});
✅ What this code does
• Stops form submission if input is invalid
• Shows error message on screen
• Validates step by step
• Clears old errors automatically
🧠 Key Learning
• Use preventDefault() to stop submission
• Use .trim() to remove extra spaces
• Show errors in UI instead of alerts
• Validate fields one by one
Double Tap ♥️ For More