50-useful-python-scripts-free-pdf (3).pdf
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BroadcastChannel lets you send messages between tabs instantly, avoiding inconsistent state and improving user experience.
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40 Ways For Passive Income
🎨 VIRTUAL PRODUCTS DESIGN
* Print on Demand (POD)
* Printable
* Infographics
* Your Original Fonts
* Digital Art & Clip Art
* 3D Models & Renderings
* Coloring Pages & Books
* Building Plans
* Architectural Plans
* Board game Printouts
🧵 CRAFTS & ARTS
* Selling Crochet Patterns
* Sewing Patterns
* Painting Tutorials
* Drawing Lessons
* Woodworking Instructions
✍️ WRITING
* Online Teaching Courses
* eBooks
* Kindle Books
💻 SOFTWARE & APPS
* Business Doc Templates
* Apps
* Selling Digital Photos
* Selling Lightroom Pre-sets
* 3-D Models
* Worksheets (EDU. Curriculum)
🧘 WELLNESS
* Nutrition Plans
* Meal-Prep Plans
* Workout Plans
* Custom Beauty/Style/Skincare
* Custom Travel Planning
🔗 AFFILIATE MARKETING
* Shopping Referral Programs
* Affiliate Networks
* Virtual Products and Courses
📺 ADVERTISING INCOME FROM ADS
* Ads from Networks
* Ads from Companies
* YouTube Cartoons
* YouTube Audiobooks
* YouTube Foreign Language Lessons
* YouTube Popular Children Songs
* YouTube DIY Tutorials
🌐 ONLINE SERVICES
* Reselling Web Hosting
* Local Directories
* Job Boards
Credit goes to @Mr_NeophyteX
Copy with Credit or get copyright banned.
🎨 VIRTUAL PRODUCTS DESIGN
* Print on Demand (POD)
* Printable
* Infographics
* Your Original Fonts
* Digital Art & Clip Art
* 3D Models & Renderings
* Coloring Pages & Books
* Building Plans
* Architectural Plans
* Board game Printouts
🧵 CRAFTS & ARTS
* Selling Crochet Patterns
* Sewing Patterns
* Painting Tutorials
* Drawing Lessons
* Woodworking Instructions
✍️ WRITING
* Online Teaching Courses
* eBooks
* Kindle Books
💻 SOFTWARE & APPS
* Business Doc Templates
* Apps
* Selling Digital Photos
* Selling Lightroom Pre-sets
* 3-D Models
* Worksheets (EDU. Curriculum)
🧘 WELLNESS
* Nutrition Plans
* Meal-Prep Plans
* Workout Plans
* Custom Beauty/Style/Skincare
* Custom Travel Planning
🔗 AFFILIATE MARKETING
* Shopping Referral Programs
* Affiliate Networks
* Virtual Products and Courses
📺 ADVERTISING INCOME FROM ADS
* Ads from Networks
* Ads from Companies
* YouTube Cartoons
* YouTube Audiobooks
* YouTube Foreign Language Lessons
* YouTube Popular Children Songs
* YouTube DIY Tutorials
🌐 ONLINE SERVICES
* Reselling Web Hosting
* Local Directories
* Job Boards
Credit goes to @Mr_NeophyteX
Copy with Credit or get copyright banned.
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😱✨ You can download ALL the personal info Google has about you! 🤗💻
✅ Just head over to:
🔗 takeout.google.com
📦 There, you can grab your:
📌 🔍 Search History
📌 📧 Gmail Emails
📌 📁 Google Drive Files
📌 🎥 YouTube Activities
📌 🖼 Google Photos Images
...and so much more! 🧠💥
🚨 Heads up! It’s really important to know how much info Google keeps on you. 🕵️♀️
Your privacy = your power! 🔐💪
📲 Take control, get your data, and stay informed! 🌍✨
Credit goes to @Mr_NeophyteX
Give proper Credit to avoid copyright banned.
😱✨ You can download ALL the personal info Google has about you! 🤗💻
✅ Just head over to:
🔗 takeout.google.com
📦 There, you can grab your:
📌 🔍 Search History
📌 📧 Gmail Emails
📌 📁 Google Drive Files
📌 🎥 YouTube Activities
📌 🖼 Google Photos Images
...and so much more! 🧠💥
📂 It’s super easy — just pick what you want, and Google will pack it all into a neat downloadable file for you. 🎁📤
🚨 Heads up! It’s really important to know how much info Google keeps on you. 🕵️♀️
Your privacy = your power! 🔐💪
📲 Take control, get your data, and stay informed! 🌍✨
Credit goes to @Mr_NeophyteX
Give proper Credit to avoid copyright banned.
Managing multiple JavaScript files and their dependencies can become complex.
Module bundlers simplify this process by combining various assets: JavaScript, CSS, HTML, into a single or smaller set of files, optimizing web applications for performance and maintainability.
@CodingCoursePro
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Module bundlers simplify this process by combining various assets: JavaScript, CSS, HTML, into a single or smaller set of files, optimizing web applications for performance and maintainability.
@CodingCoursePro
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✅ Backend Basics Interview Questions – Part 3 (Express.js Middleware) 🚀🧠
📍 1. What is Middleware in Express.js?
A: Middleware are functions that execute during the request-response cycle. They can modify req/res, execute code, or end the request.
📍 2. Types of Middleware
⦁ Application-level: Applied to all routes or specific routes (using app.use())
⦁ Router-level: Applied to router instances
⦁ Built-in: e.g., express.json(), express.static()
⦁ Third-party: e.g., cors, morgan, helmet
📍 3. Example – Logging Middleware
📍 4. Built-in Middleware
📍 5. Router-level Middleware
📍 6. Error-handling Middleware
📍 7. Chaining Middleware
💡 Pro Tip: Middleware order matters—always place error-handling middleware last.
💬 Tap ❤️ for more!
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📍 1. What is Middleware in Express.js?
A: Middleware are functions that execute during the request-response cycle. They can modify req/res, execute code, or end the request.
📍 2. Types of Middleware
⦁ Application-level: Applied to all routes or specific routes (using app.use())
⦁ Router-level: Applied to router instances
⦁ Built-in: e.g., express.json(), express.static()
⦁ Third-party: e.g., cors, morgan, helmet
📍 3. Example – Logging Middleware
app.use((req, res, next) => {
console.log(`${req.method} ${req.url}`);
next(); // Pass to next middleware/route
});📍 4. Built-in Middleware
app.use(express.json()); // Parses JSON body
app.use(express.urlencoded({ extended: true })); // Parses URL-encoded body
app.use(express.static('public')); // Serves static files
📍 5. Router-level Middleware
const router = express.Router();
router.use((req, res, next) => {
console.log('Router Middleware Active');
next();
});
app.use('/api', router);
📍 6. Error-handling Middleware
app.use((err, req, res, next) => {
console.error(err.stack);
res.status(500).send('Something broke!');
});📍 7. Chaining Middleware
app.get('/profile', authMiddleware, logMiddleware, (req, res) => {
res.send('User Profile');
});💡 Pro Tip: Middleware order matters—always place error-handling middleware last.
💬 Tap ❤️ for more!
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Steps::
₹0 will be charged, and your plan will activate.
Credit goes to @Mr_NeophyteX
Mention credit to avoid copyright banned.
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✅ Backend Basics Interview Questions – Part 4 (REST API) 🚀💻
📍 1. What is a REST API?
A: REST (Representational State Transfer) APIs allow clients to interact with server resources using HTTP methods like GET, POST, PUT, DELETE.
📍 2. Difference Between REST & SOAP
⦁ REST is an architectural style using HTTP, lightweight, and supports JSON/XML for stateless communication.
⦁ SOAP is a strict protocol, heavier, XML-only, stateful, with built-in standards for enterprise reliability and security.
📍 3. HTTP Methods
⦁ GET → Read data
⦁ POST → Create data
⦁ PUT → Update data (full replacement)
⦁ DELETE → Delete data
⦁ PATCH → Partial update
📍 4. Example – Creating a GET Route
📍 5. Example – POST Route
📍 6. Route Parameters & Query Parameters
📍 7. Status Codes
⦁ 200 → OK
⦁ 201 → Created
⦁ 400 → Bad Request
⦁ 404 → Not Found
⦁ 500 → Server Error
📍 8. Best Practices
⦁ Validate request data
⦁ Handle errors properly
⦁ Use consistent endpoint naming (e.g., /api/v1/users)
⦁ Keep routes modular using express.Router()
💬 Double Tap ❤️ for more!
@CodingCoursePro
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📍 1. What is a REST API?
A: REST (Representational State Transfer) APIs allow clients to interact with server resources using HTTP methods like GET, POST, PUT, DELETE.
📍 2. Difference Between REST & SOAP
⦁ REST is an architectural style using HTTP, lightweight, and supports JSON/XML for stateless communication.
⦁ SOAP is a strict protocol, heavier, XML-only, stateful, with built-in standards for enterprise reliability and security.
📍 3. HTTP Methods
⦁ GET → Read data
⦁ POST → Create data
⦁ PUT → Update data (full replacement)
⦁ DELETE → Delete data
⦁ PATCH → Partial update
📍 4. Example – Creating a GET Route
app.get('/users', (req, res) => {
res.send(users); // Return all users
});📍 5. Example – POST Route
app.post('/users', (req, res) => {
const newUser = req.body;
users.push(newUser);
res.status(201).send(newUser);
});📍 6. Route Parameters & Query Parameters
app.get('/users/:id', (req, res) => {
res.send(users.find(u => u.id == req.params.id));
});
app.get('/search', (req, res) => {
res.send(users.filter(u => u.name.includes(req.query.name)));
});📍 7. Status Codes
⦁ 200 → OK
⦁ 201 → Created
⦁ 400 → Bad Request
⦁ 404 → Not Found
⦁ 500 → Server Error
📍 8. Best Practices
⦁ Validate request data
⦁ Handle errors properly
⦁ Use consistent endpoint naming (e.g., /api/v1/users)
⦁ Keep routes modular using express.Router()
💬 Double Tap ❤️ for more!
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The code `*#899#` is a secret (engineering or diagnostic) code used on some Android smartphones, especially OPPO, Realme, and OnePlus devices (since they share ColorOS / OxygenOS / RealmeUI roots).
When you dial `*#899#` in the phone dialer, it opens the Engineer Mode or Device Test Menu — a hidden diagnostic interface used by technicians and advanced users to test hardware components and system functions.
Here’s a list of common usages and functions found under `*#899#`:
---
### 🔧 Main Uses of `*#899#` Engineer Mode
1. Hardware Testing
* Test the display (colors, touch, brightness)
* Test vibration motor
* Test speaker and receiver
* Test microphone
* Test camera (front/rear, focus, flash)
* Test proximity and light sensors
* Test gyroscope, accelerometer, compass
* Test fingerprint sensor
* Test SIM card and network functions
2. Software & System Diagnostics
* Check software version and build number
* Log system information
* Check baseband version and radio info
* Access bug reports and device logs
3. Network & Connectivity Tests
* Wi-Fi test
* Bluetooth test
* GPS test
* NFC test
* Mobile network (LTE/5G) test
4. Battery & Power Management
* Check battery health
* Voltage, temperature, and charging status
* Power consumption data
5. Device Calibration
* Calibrate sensors (gyroscope, proximity, light)
* Touch screen calibration
6. Debugging / Factory Verification
* Perform factory hardware checks
* View test history
* Run automated diagnostic tests
---
Credit goes to @Mr_NeophyteX
Mention credit to avoid copyright banned.
When you dial `*#899#` in the phone dialer, it opens the Engineer Mode or Device Test Menu — a hidden diagnostic interface used by technicians and advanced users to test hardware components and system functions.
Here’s a list of common usages and functions found under `*#899#`:
---
### 🔧 Main Uses of `*#899#` Engineer Mode
1. Hardware Testing
* Test the display (colors, touch, brightness)
* Test vibration motor
* Test speaker and receiver
* Test microphone
* Test camera (front/rear, focus, flash)
* Test proximity and light sensors
* Test gyroscope, accelerometer, compass
* Test fingerprint sensor
* Test SIM card and network functions
2. Software & System Diagnostics
* Check software version and build number
* Log system information
* Check baseband version and radio info
* Access bug reports and device logs
3. Network & Connectivity Tests
* Wi-Fi test
* Bluetooth test
* GPS test
* NFC test
* Mobile network (LTE/5G) test
4. Battery & Power Management
* Check battery health
* Voltage, temperature, and charging status
* Power consumption data
5. Device Calibration
* Calibrate sensors (gyroscope, proximity, light)
* Touch screen calibration
6. Debugging / Factory Verification
* Perform factory hardware checks
* View test history
* Run automated diagnostic tests
---
⚠️ Important Notes:
* This menu is meant for service technicians; changing settings inside it may affect device performance or calibration.
* Not all options work or appear on every phone — it depends on the manufacturer and firmware version.
* Avoid modifying values unless you know what they do.
Credit goes to @Mr_NeophyteX
Mention credit to avoid copyright banned.
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