Ethio Coders (ኢትዮ ኮደርስ)

🚨Alert የቴሌግራም አካውንታችሁን Log Out ከማድረጋችሁ በፊት ተጠንቀቁ❗ ብዙ ተጠቃሚዎች አካውንታቸውን Log Out አድርገው በድጋሚ ለመግባት ሲሞክሩ "Code አንልክም፤ በኢሜይል እንዲላክ Premium ግዙ" የሚል መልዕክት እየመጣባቸው ተቸግረዋል ችግሩ ምንድነው? ቴሌግራም የደህንነት መጠበቂያ ኢሜይል (Recovery Email) ያላስገቡ ተጠቃሚዎች አካውንታቸውን በሌላ ስልክ ወይም ከወጡ በኋላ ለመግባት ሲሞክሩ የኤስኤምኤስ (SMS) ኮድ ከመላክ ይልቅ በኢሜይል እንዲላክ ያስገድዳል ኢሜይል ከሌለህ ደግሞ በክፍያ (Premium) እንድትገባ ሊጠይቅህ ይችላል መፍትሄው፦ 1. አካውንታችሁ ሳይዘጋ፦ አሁኑኑ Settings=>Privacy and Security => Two-Step Verification ውስጥ በመግባት ትክክለኛ የኢሜይል አድራሻችሁን አስገቡ 2. አካውንቱ ለተዘጋበት ሰው፦ በሌላ ስልክ ወይም ኮምፒውተር ላይ አካውንቱ ክፍት ካልሆነ፣ የቴሌግራም Support መጠየቅ ወይም ጥቂት ቀናትን ጠብቆ በድጋሚ መሞከር ሊያስፈልግ ይችላል ማሳሰቢያ፦ አካውንታችሁ በሌላ ስልክ ላይ ክፍት ካልሆነ በስተቀር Log Out አታድርጉ! ድንገት ቴሌግራም ላይ "Log out" ብታደርጉ ያለምንም code እንደገና ለመግባት passkey feature ን ይጠቀሙ ! ይህን setting on ለማድረግ Telegram setting ላይ በመግባት -> privacy and security -> passkeys -> create passkeys የሚለውን በመጫን passkey ይፈጠሩ ! ይህ ለምን ይጠቅማል ? ድንገት ከ telegram log out ብትሉ በቀላሉ በ አሻራ / pattern/screen lock ወይ face በቀላሉ እንድንገባ ያደርጋል !

✅ Dashboard Design Principles 📊🎨 👉 Creating dashboards is not just about charts.  A good dashboard should be: ✔ Clear ✔ Interactive ✔ Easy to understand ✔ Business-focused  🔹 1. What is a Dashboard? A dashboard is a visual interface that shows: 📈 KPIs 📊 Charts 📉 Business insights  👉 Used for decision-making.  🔥 2. Goals of a Good Dashboard ✔ Show important insights quickly ✔ Reduce confusion ✔ Help users take action  🔹 3. Key Dashboard Principles ⭐  ✅ Keep It Simple ❌ Too many visuals = confusion ✔ Use only important charts  ✅ Use Proper Chart Types Purpose : Best Chart Comparison : Bar Chart Trends : Line Chart Distribution : Histogram Percentage : Pie Chart  ✅ Maintain Visual Hierarchy 👉 Important KPIs should appear at the top.  Example: ✔ Revenue ✔ Profit ✔ Customer Count  🔹 4. Use Consistent Colors ⭐ ✔ Same color for same category ✔ Avoid too many bright colors  Example: 🟢 Profit 🔴 Loss  🔹 5. Add Filters & Interactivity Use: ✔ Slicers ✔ Drill-through ✔ Dropdown filters  👉 Helps users explore data.  🔹 6. Dashboard Layout Best Practices Top Section 👉 KPIs & summary cards  Middle Section 👉 Main charts  Bottom Section 👉 Detailed tables  🔹 7. Common Dashboard Mistakes ❌ ❌ Too much data ❌ Wrong chart selection ❌ Poor color choices ❌ Cluttered layout  🔹 8. Storytelling with Data ⭐ A dashboard should answer: ✔ What happened? ✔ Why did it happen? ✔ What should we do next?  🔹 9. Why Dashboard Design Matters? ✔ Better business decisions ✔ Improved user experience ✔ Professional reporting  🎯 Today’s Goal ✔ Learn dashboard principles ✔ Understand chart selection ✔ Learn layout & storytelling 

🧠 96 Difference Between Redux and Context API Redux : Advanced state management : Better for large apps Context API : Simple global state : Better for smaller apps 🧠 97. What are React Hooks? Hooks allow functional components to use: • State • Lifecycle features Common Hooks: • useState • useEffect • useRef • useMemo • useCallback 🧠 98. What is useRef? useRef stores mutable values without re-rendering. Example: const inputRef = useRef(); Uses: • Access DOM elements • Store previous values 🧠 99. What is useMemo? useMemo optimizes expensive calculations. Example: const result = useMemo(() => { return calculate(data); }, [data]); 🧠 100. What is useCallback? useCallback memoizes functions. Example: const memoFn = useCallback(() => { console.log("Hello"); }, []); 🧠 101. What is Lazy Loading in React? Lazy loading loads components only when needed. Example: const Home = React.lazy(() => import("./Home")); Benefits: ✅ Faster loading ✅ Better performance 🧠 102. What is React Router? React Router handles navigation in React applications. Example: } /> 🧠 103. What are Controlled Components? Form elements controlled by React state. Example: setName(e.target.value)} /> 🧠 104. What are Uncontrolled Components? Form elements managed by DOM itself. Example: 🧠 105. What is Lifting State Up? Moving shared state to common parent component. Benefits: ✅ Better state sharing ✅ Improved synchronization 🧠 106. What is Higher Order Component HOC? HOC is a function that takes component and returns enhanced component. Example: const Enhanced = withAuth(Component); 🧠 107. What are Custom Hooks? Custom hooks reuse logic across components. Example: function useFetch() { // logic } 🧠 108. What is Strict Mode? React Strict Mode helps identify potential issues. Example: 🧠 109. What is Server-Side Rendering SSR? SSR renders React components on server before sending to browser. Benefits: ✅ Better SEO ✅ Faster initial load 🧠 110. Difference Between CSR and SSR CSR : Rendered in browser : Slower initial load : SEO less optimized SSR : Rendered on server : Faster initial load : Better SEO Double Tap ❤️ For Part-5

🚀 Web Development Interview Questions with Answers — Part 4: ReactJS 🧠 81. What is React? React is a JavaScript library used to build user interfaces. It was developed by Meta. Features: ✅ Component-based architecture ✅ Virtual DOM ✅ Reusable UI components ✅ Fast rendering Example: function App() { return Hello React ; } 🧠 82. What are Components in React? Components are reusable building blocks of UI. Types: • Functional Components • Class Components Example: function Welcome() { return Welcome ; } 🧠 83. Difference Between Functional and Class Components Functional Component : Simpler syntax : Uses hooks : Preferred nowadays Class Component : More complex : Uses lifecycle methods : Older approach Functional Example: function App() { return Hello ; } 🧠 84. What is JSX? JSX stands for: 👉 JavaScript XML It allows writing HTML inside JavaScript. Example: const element = Hello ; Benefits: ✅ Cleaner syntax ✅ Easier UI development 🧠 85. What are Props? Props are used to pass data between components. Example: function User(props) { return {props.name} ; } Usage: 🧠 86. What is State? State stores dynamic data inside components. Example: const [count, setCount] = useState(0); Uses: • Form handling • Counters • Dynamic UI updates 🧠 87. Difference Between State and Props State : Managed inside component : Mutable Props : Passed from parent : Immutable 🧠 88. What is useState Hook? useState manages state in functional components. Example: import { useState } from "react"; function Counter() { const [count, setCount] = useState(0); return ( setCount(count + 1)}> {count} ); } 🧠 89. What is useEffect Hook? useEffect handles side effects. Example: useEffect(() => { console.log("Component Loaded"); }, []); Uses: • API calls • Timers • Event listeners 🧠 90. What is Virtual DOM? Virtual DOM is a lightweight copy of real DOM. React updates only changed parts instead of entire page. Benefits: ✅ Faster updates ✅ Better performance 🧠 91. What is Reconciliation? Reconciliation is React’s process of comparing: • Old Virtual DOM • New Virtual DOM Then updating only changed elements. 🧠 92. What are Keys in React? Keys uniquely identify list items. Example: items.map(item => ( • {item.name} )); Benefits: ✅ Better rendering ✅ Efficient updates 🧠 93. What is Prop Drilling? Passing props through multiple nested components unnecessarily. Problem: App → Parent → Child → GrandChild Solution: • Context API • Redux 🧠 94. What is Context API? Context API shares data globally without prop drilling. Example: const UserContext = createContext(); Uses: • Theme management • Authentication • Global settings 🧠 95. What is Redux? Redux is a state management library used in React applications. Concepts: • Store • Actions • Reducers Benefits: ✅ Centralized state ✅ Predictable state updates .

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⚙️ MERN Stack Developer Roadmap 📂 HTML/CSS/JavaScript Fundamentals ∟📂 MongoDB (Installation, Collections, CRUD) ∟📂 Express.js (Setup, Routing, Middleware) ∟📂 React.js (Components, Hooks, State, Props) ∟📂 Node.js Basics (npm, modules, HTTP server) ∟📂 Backend API Development (REST endpoints) ∟📂 Frontend-State Management (useState, useEffect, Context/Redux) ∟📂 MongoDB + Mongoose (Schemas, Models) ∟📂 Authentication (JWT, bcrypt, Protected Routes) ∟📂 React Router (Navigation, Dynamic Routing) ∟📂 Axios/Fetch API Integration ∟📂 Error Handling & Validation ∟📂 File Uploads (Multer, Cloudinary) ∟📂 Deployment (Vercel Frontend, Render/Heroku Backend, MongoDB Atlas) ∟📂 Projects (Todo App → E-commerce → Social Media Clone) ∟✅ Apply for Fullstack / Frontend Roles 💬 Tap ❤️ for more!

🌐 Frontend Development Concepts You Should Know Frontend development focuses on building the user interface (UI) of websites and web applications—the part users see and interact with in the browser. It combines design, structure, interactivity, and performance to create responsive and user-friendly web experiences. 1️⃣ Core Technologies of Frontend Development Frontend development is built on three foundational technologies: - HTML (HyperText Markup Language): provides the structure of a webpage - CSS (Cascading Style Sheets): controls the visual appearance and layout - JavaScript: adds interactivity and dynamic behavior to web pages 2️⃣ Important Frontend Concepts - Responsive Design: ensures websites work properly across devices - DOM (Document Object Model): represents the structure of a webpage as objects - Event Handling: frontend applications respond to user actions - Asynchronous Programming: fetch data without reloading pages 3️⃣ Frontend Frameworks & Libraries - React: popular JavaScript library for building component-based UI - Angular: full frontend framework for large-scale applications - Vue.js: lightweight framework known for simplicity and flexibility 4️⃣ Styling Tools - CSS Frameworks: Tailwind CSS, Bootstrap, Material UI - CSS Preprocessors: Sass, Less 5️⃣ Frontend Development Tools - VS Code: code editor - Git: version control - Webpack / Vite: module bundlers - NPM / Yarn: package managers - Chrome DevTools: debugging 6️⃣ Performance Optimization - lazy loading - code splitting - image optimization - caching strategies - minimizing HTTP requests 7️⃣ Typical Frontend Development Workflow 1. UI/UX Design 2. HTML Structure 3. Styling with CSS 4. Add JavaScript Interactivity 5. Integrate APIs 6. Test and debug 7. Deploy application 8️⃣ Real-World Frontend Projects - Responsive Portfolio Website - Weather App - To-Do List Application - E-commerce Product Page - Dashboard UI

🌐 5. Node.js Interview Questions (111–130) 111. What is Node.js? 112. Why use Node.js? 113. What is npm? 114. Difference between CommonJS and ES Modules 115. What is Express.js? 116. What is middleware? 117. What is REST API? 118. Difference between PUT and PATCH 119. What is JWT? 120. What is authentication vs authorization? 121. What is CORS? 122. What is dotenv? 123. What is event loop? 124. What is non-blocking I/O? 125. What is package.json? 126. What is nodemon? 127. What are streams in Node.js? 128. What is buffering? 129. What is async middleware? 130. What is rate limiting? 🗄️ 6. Database Interview Questions (131–150) 131. What is SQL? 132. Difference between SQL and NoSQL 133. What is primary key? 134. What is foreign key? 135. What is normalization? 136. What are joins in SQL? 137. Difference between INNER JOIN and LEFT JOIN 138. What is indexing? 139. What is aggregate function? 140. Difference between DELETE, DROP, and TRUNCATE 141. What is MongoDB? 142. Difference between MongoDB and MySQL 143. What is schema? 144. What is ORM? 145. What is Sequelize? 146. What is Mongoose? 147. What is ACID property? 148. What is transaction? 149. What is database sharding? 150. What is replication? 🔒 7. Web Security Interview Questions (151–165) 151. What is HTTPS? 152. Difference between HTTP and HTTPS 153. What is SSL/TLS? 154. What is XSS attack? 155. What is CSRF attack? 156. What is SQL Injection? 157. How to secure APIs? 158. What is hashing? 159. Difference between encryption and hashing 160. What is bcrypt? 161. What is OAuth? 162. What is JWT token security? 163. What is Content Security Policy? 164. What is brute force attack? 165. What is two-factor authentication? 🚀 8. APIs & Backend Concepts (166–180) 166. What is API? 167. Difference between REST and GraphQL 168. What is RESTful API? 169. What are HTTP status codes? 170. Explain 200, 201, 400, 401, 403, 404, 500 171. What is API testing? 172. What is Postman? 173. What is WebSocket? 174. Difference between polling and WebSocket 175. What is microservice architecture? 176. What is monolithic architecture? 177. What is caching? 178. What is Redis? 179. What is CDN? 180. What is load balancing? ☁️ 9. Deployment & DevOps Questions (181–190) 181. What is Git? 182. Difference between Git and GitHub 183. What is version control? 184. What is branching in Git? 185. What is merge conflict? 186. What is CI/CD? 187. What is Docker? 188. What is Kubernetes? 189. What is cloud hosting? 190. Difference between AWS, Azure, and GCP 🧩 10. Advanced Web Development Questions (191–200) 191. What is Progressive Web App (PWA)? 192. What is service worker? 193. What is lazy loading? 194. What is code splitting? 195. What is tree shaking? 196. What is SSR in Next.js? 197. What is hydration in React? 198. What is Webpack? 199. What is Babel? 200. What is TypeScript and why use it? 🔥 Double Tap ❤️ For Detailed Answers

🚀 Top 200 Web Development Interview Questions 🧠 1. HTML Interview Questions (1–20) 1. What is HTML? 2. Difference between HTML4 and HTML5 3. What are semantic tags in HTML5? 4. Difference between <div> and <span> 5. What is the purpose of DOCTYPE? 6. What are meta tags? 7. Difference between ID and Class 8. What are inline and block elements? 9. Explain forms in HTML 10. Difference between GET and POST 11. What is localStorage and sessionStorage? 12. What are data attributes? 13. What is iframe? 14. Difference between cookies and localStorage 15. What are void elements? 16. What is the purpose of alt attribute? 17. Explain audio and video tags 18. What is accessibility in HTML? 19. What are ARIA attributes? 20. What is the difference between strong and b tags? 🎨 2. CSS Interview Questions (21–45) 21. What is CSS? 22. Difference between inline, internal, and external CSS 23. What is specificity in CSS? 24. Explain CSS Box Model 25. Difference between margin and padding 26. What is Flexbox? 27. What is CSS Grid? 28. Difference between relative, absolute, fixed, and sticky positioning 29. What is z-index? 30. Difference between em, rem, %, px, vh, and vw 31. What are pseudo-classes? 32. What are pseudo-elements? 33. Difference between visibility:hidden and display:none 34. What is media query? 35. Explain responsive design 36. What is mobile-first design? 37. What are CSS transitions? 38. Difference between transition and animation 39. What is transform property? 40. What is overflow property? 41. Explain CSS inheritance 42. What is !important? 43. What are CSS preprocessors? 44. Difference between SCSS and SASS 45. What is Bootstrap? ⚡ 3. JavaScript Basics (46–80) 46. What is JavaScript? 47. Difference between var, let, and const 48. What are data types in JavaScript? 49. Difference between null and undefined 50. What is hoisting? 51. Explain scope in JavaScript 52. What is closure? 53. What is callback function? 54. What is arrow function? 55. Difference between == and === 56. What is event bubbling? 57. What is event capturing? 58. What is event delegation? 59. What is DOM? 60. Difference between synchronous and asynchronous programming 61. What is promise in JavaScript? 62. What are async and await? 63. What is setTimeout? 64. Difference between map(), filter(), and reduce() 65. What is destructuring? 66. What is spread operator? 67. What is rest operator? 68. What is template literal? 69. What is optional chaining? 70. Explain this keyword 71. Difference between function declaration and expression 72. What is prototype? 73. What is prototypal inheritance? 74. What is JSON? 75. Difference between localStorage and sessionStorage 76. What is NaN? 77. What are truthy and falsy values? 78. What is debounce? 79. What is throttle? 80. What is currying? ⚛️ 4. ReactJS Interview Questions (81–110) 81. What is React? 82. What are components in React? 83. Difference between functional and class components 84. What is JSX? 85. What are props? 86. What is state? 87. Difference between state and props 88. What is useState hook? 89. What is useEffect hook? 90. What is virtual DOM? 91. What is reconciliation? 92. What are keys in React? 93. What is prop drilling? 94. What is Context API? 95. What is Redux? 96. Difference between Redux and Context API 97. What are React hooks? 98. What is useRef? 99. What is useMemo? 100. What is useCallback? 101. What is lazy loading in React? 102. What is React Router? 103. What are controlled components? 104. What are uncontrolled components? 105. What is lifting state up? 106. What is Higher Order Component (HOC)? 107. What are custom hooks? 108. What is Strict Mode? 109. What is server-side rendering? 110. Difference between CSR and SSR

⚙️ Basic Programming Elements You Should Know 💻 These elements are the building blocks of every program. They allow programs to store data, perform operations, and execute instructions. Variable  A variable is a named storage location used to store data in memory. Its value can change during program execution. Example:  age = 26  name = "Ajay"  Here:  • age stores a number • name stores text Variables help store information that programs can use later. Constant  A constant is a value that does not change during program execution. Constants are used when a value should remain fixed. Example:  PI = 3.14159  MAX_USERS = 100  By convention, constants are often written in uppercase. They help prevent accidental modification of important values. Data Type  A data type defines the kind of data a variable stores. Common data types include:  • Integer: count = 10 • Float: price = 19.99 • String: city = "Jodhpur" • Boolean: is_active = True Data types help the computer understand how to process and store data. Operator  Operators are symbols used to perform operations on values or variables. • Arithmetic Operators: a = 10; b = 5; print(a + b) • Comparison Operators: print(a > b) • Logical Operators: x = True; y = False; print(x and y) Operators are used in calculations and decision-making. Expression  An expression is a combination of values, variables, and operators that produces a result. Example: result = (10 + 5) * 2  Here the expression (10 + 5) * 2 is evaluated first, and the result is stored in result. Expressions are commonly used in calculations and conditions. Statement  A statement is a single instruction that the computer executes. Example:  score = 90  print(score)  Each line represents a statement telling the computer what to do. Programs are made up of many statements executed in sequence. ⭐ Key Idea  Basic programming elements such as variables, constants, data types, operators, expressions, and statements form the core of writing programs. Understanding these concepts makes it much easier to learn any programming language.

🧠 SQL Interview Question (Moderate–Tricky & Duplicate Transaction Detection) 📌 transactions(transaction_id, user_id, transaction_date, amount) ❓ Ques : 👉 Find users who made multiple transactions with the same amount consecutively. 🧩 How Interviewers Expect You to Think • Sort transactions chronologically for each user • Compare the current transaction amount with the previous one • Use a window function to detect consecutive duplicates 💡 SQL Solution SELECT user_id, transaction_date, amount FROM ( SELECT user_id, transaction_date, amount, LAG(amount) OVER ( PARTITION BY user_id ORDER BY transaction_date ) AS prev_amount FROM transactions ) t WHERE amount = prev_amount; 🔥 Why This Question Is Powerful • Tests understanding of LAG() for row comparison • Evaluates ability to identify patterns in sequential data • Reflects real-world use cases like detecting suspicious or duplicate transactions ❤️ React if you want more tricky real interview-level SQL questions 🚀

🌐 Web Application Architecture

A collection of very short 🤏 but handy CSS snippets for you ✨

እንኳን ለ1447ኛው የኢድ አል-አድሃ (አረፋ) በዓል በሰላም አደረሳችሁ! 🕌✨ ​ለመላው የእስልምና እምነት ተከታይ ቤተሰቦቻችን በሙሉ፤ ይህ በዓል የሰላም፣ የፍቅር፣ የመተሳሰብ እና የአንድነት እንዲሆንላችሁ ከልብ እንመኛለን። ​መልካም በዓል! ❤️🌙 ​#ኢድአልአድሃ #አረፋ #EidMubarak Share :- @ethio_fast_free Share:- @ethio_fast_free

🔅 Best Website to Learn React: https://react.dev/

✅ Overfitting vs Underfitting 🤖📉 👉 One of the most important concepts in Machine Learning. A model should not: ❌ Learn too little ❌ Learn too much It should learn just right ✅ 🔹 1. What is Underfitting? 👉 Underfitting happens when the model is too simple and cannot learn patterns properly. Characteristics: ❌ Poor performance on training data  ❌ Poor performance on testing data  ✅ Example  Trying to fit a straight line to highly complex data. 🔥 2. What is Overfitting? 👉 Overfitting happens when the model memorizes training data instead of learning general patterns. Characteristics: ✔ Very high training accuracy  ❌ Poor testing accuracy  ✅ Example  A student memorizes answers instead of understanding concepts. 🔹 3. Ideal Model (Best Case) ⭐  👉 Performs well on:  ✔ Training data  ✔ Testing data  This is called: ✅ Good Generalization 🔹 4. Visual Understanding  📉 Underfitting → Too simple  📈 Overfitting → Too complex  ✅ Balanced model → Best fit 🔹 5. Causes of Overfitting  ✔ Too much model complexity  ✔ Small dataset  ✔ Too many features  🔹 6. How to Reduce Overfitting ⭐  ✔ More training data  ✔ Feature selection  ✔ Cross-validation  ✔ Regularization  ✔ Simpler model  🔹 7. How to Reduce Underfitting  ✔ Use better features  ✔ Increase model complexity  ✔ Train longer  🔹 8. Why This is Important?  ✔ Critical interview topic  ✔ Improves model performance  ✔ Core ML concept  🎯 Today’s Goal  ✔ Understand overfitting  ✔ Understand underfitting  ✔ Learn solutions 

#ጥቆማ #CyberTalentChallenge   የኢንፎርሜሽን መረብ ደህንነት አስተዳደር (ኢመደአ) 5ኛ ዙር የሳይበር ታለንት ቻሌንጅ ሰመር ካምፕ ምዝገባ እያካሄደ ይገኛል።   ፕሮግራሙ ከአንደኛ ደረጃ ትምህርት እስከ ዩኒቨርሲቲ ተመራቂ ድረስ ያሉ ልዩ ተሰጥኦና ፍላጎት ያላቸውን ታዳጊ ወጣቶች ያካትታል።   ምዝገባው ነገ ግንቦት 17/2018 ዓ.ም ያበቃል። ዘርፎቹ ፦ - ሳይበር ደህንነት - ዴቨሎፕመንት - ኢምቤድድ ሲስተም - ኤሮስፔስ - ኢመርጂንግ ቴክኖሎጂ ... ናቸው። የሰመር ካምፕ ፕሮግራሙ የሚካሔድባቸው ዩኒቨርሲቲዎች • አዲስ አበባ ሳይንሳና ቴክኖሎጂ ዩኒቨርሲቲ ፣ • ባሕር ዳር ዩኒቨርሲቲ፣ • ጅማ ዩኒቨርሲቲ፣ • ደብረ ብርሃን ዩኒቨርሲቲ፣ • ወላይታ ሶዶ ዩኒቨርሲቲ እና ሐረማያ ዩኒቨርሲቲ መሆናቸው ተገልጿል። ምዝገባው በኦንላይን በዚህ ሊንክ  👉 https://ctc.insa.gov.et/registration ነው የሚከናወነው። ለመመዝገብ ብሔራዊ መታወቂያ (National ID) ያስፈልጋል። የሚገኙ ዕድሎች፦ ° በINSA የሥራ ዕድል ° የፈጠራ ስራን እውን ለማድረግ የሚያስችል ድጋፍና ° ህልምን እውን ለማድረግ የሚያስችሉ መድረኮችና ግንኙነቶች ° በፈጠራ ስራ ዙሪያ የቴክኒክ ድጋፍና ስልጠናዎች ቲክቫህ ኢትዮጵያ ግንቦት 16 ቀን 2018 ዓ/ም

🚀 Programming A–Z Important Terms You Should Know 👨‍💻🔥 🅰️ Algorithm → Step-by-step solution to solve a problem 🅱️ Bug → Error or issue in a program 🅲 Compiler → Converts code into machine language 🅳 Database → Stores and manages data 🅴 Exception → Runtime error in a program 🅵 Framework → Pre-built structure for development 🅶 Git → Version control system for tracking code changes 🅷 HTML → Standard language to create web pages 🅸 IDE → Software used to write & run code 🅹 JSON → Lightweight format for data exchange 🅺 Keyword → Reserved word in a programming language 🅻 Library → Collection of reusable code/functions 🅼 Machine Learning → AI technique where systems learn from data 🅽 Node.js → JavaScript runtime for backend development 🅾️ Object-Oriented Programming (OOP) → Programming using classes & objects 🅿️ Python → Popular language for AI, automation & backend 🆀 Query → Request for data from a database 🆁 Runtime → Environment where code executes 🆂 Syntax → Rules for writing code correctly 🆃 Terminal → Command-line interface for running commands 🆄 UI (User Interface) → Visual design users interact with 🆅 Variable → Stores data values in programming 🆆 Web Development → Creating websites & web applications 🆇 XML → Markup language used for storing & transporting data 🆈 YAML → Human-readable configuration language 🆉 Zero-Day Bug → Newly discovered security vulnerability

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