Master Javascript :

The JavaScript Tree 👇
|
|── Variables
| ├── var
| ├── let
| └── const
|
|── Data Types
| ├── String
| ├── Number
| ├── Boolean
| ├── Object
| ├── Array
| ├── Null
| └── Undefined
|
|── Operators
| ├── Arithmetic
| ├── Assignment
| ├── Comparison
| ├── Logical
| ├── Unary
| └── Ternary (Conditional)
||── Control Flow
| ├── if statement
| ├── else statement
| ├── else if statement
| ├── switch statement
| ├── for loop
| ├── while loop
| └── do-while loop
|
|── Functions
| ├── Function declaration
| ├── Function expression
| ├── Arrow function
| └── IIFE (Immediately Invoked Function Expression)
|
|── Scope
| ├── Global scope
| ├── Local scope
| ├── Block scope
| └── Lexical scope
||── Arrays
| ├── Array methods
| | ├── push()
| | ├── pop()
| | ├── shift()
| | ├── unshift()
| | ├── splice()
| | ├── slice()
| | └── concat()
| └── Array iteration
| ├── forEach()
| ├── map()
| ├── filter()
| └── reduce()|
|── Objects
| ├── Object properties
| | ├── Dot notation
| | └── Bracket notation
| ├── Object methods
| | ├── Object.keys()
| | ├── Object.values()
| | └── Object.entries()
| └── Object destructuring
||── Promises
| ├── Promise states
| | ├── Pending
| | ├── Fulfilled
| | └── Rejected
| ├── Promise methods
| | ├── then()
| | ├── catch()
| | └── finally()
| └── Promise.all()
|
|── Asynchronous JavaScript
| ├── Callbacks
| ├── Promises
| └── Async/Await
|
|── Error Handling
| ├── try...catch statement
| └── throw statement
|
|── JSON (JavaScript Object Notation)
||── Modules
| ├── import
| └── export
|
|── DOM Manipulation
| ├── Selecting elements
| ├── Modifying elements
| └── Creating elements
|
|── Events
| ├── Event listeners
| ├── Event propagation
| └── Event delegation
|
|── AJAX (Asynchronous JavaScript and XML)
|
|── Fetch API
||── ES6+ Features
| ├── Template literals
| ├── Destructuring assignment
| ├── Spread/rest operator
| ├── Arrow functions
| ├── Classes
| ├── let and const
| ├── Default parameters
| ├── Modules
| └── Promises
|
|── Web APIs
| ├── Local Storage
| ├── Session Storage
| └── Web Storage API
|
|── Libraries and Frameworks
| ├── React
| ├── Angular
| └── Vue.js
||── Debugging
| ├── Console.log()
| ├── Breakpoints
| └── DevTools
|
|── Others
| ├── Closures
| ├── Callbacks
| ├── Prototypes
| ├── this keyword
| ├── Hoisting
| └── Strict mode
|
| END __

JavaScript Cheatsheet 📘


Do react,if you want more such notes 🚀

⌨️ JavaScript: Array Methods Visualized

Do react,if you want more such notes 🚀

✌️ 25 Javascript Path Files Used To Store Sensitive Information In Web Application:-

1️⃣ /js/config.js
2️⃣ /js/credentials.js
3️⃣ /js/secrets.js
4️⃣ /js/keys.js
5️⃣ /js/password.js
6️⃣ /js/api_keys.js
7️⃣/js/auth_tokens.js
8️⃣/js/access_tokens.js
9️⃣/js/sessions.js

♾

1️⃣ /js/authorization.js
2️⃣ /js/encryption.js
3️⃣ /js/certificates.js
4️⃣ /js/ssl_keys.js
5️⃣ /js/passphrases.js
6️⃣ /js/policies.js
7️⃣ /js/permissions.js
8️⃣ /js/privileges.js
9️⃣ /js/hashes.js

♾

1️⃣ /js/salts.js
2️⃣ /js/nonces.js
3️⃣ js/signatures.js
4️⃣ js/digests.js
5️⃣ js/tokens.js
6️⃣ js/cookies.js
7️⃣ /js/topsecr3tdonotlook.js

Javascript Web Projects 👇👇
https://t.me/webdevelopmentbook/120

Top 10 Web Development Technologies 🌐

1. 🟨 JavaScript — 98% usage

2. 🔵 TypeScript — 78% adoption

3. 🟢 Node.js — 75% backend choice

4. ⚛️ React — 70% frontend framework

5. 🅰️ Angular — 55% enterprise use

6. 💚 Vue.js — 49% growing popularity

7. 🐍 Python — 48% for full-stack

8. 💎 Ruby on Rails — 45% rapid development

9. 🐘 PHP — 43% widespread use

10. ☕ Java — 40% enterprise solutions

11. 🦀 Rust — 38% performance-critical apps

12. 🎯 Dart — 35% with Flutter for web

13. 🔷 GraphQL — 33% API queries

14. 🍃 MongoDB — 30% NoSQL database

15. 🐳 Docker — 28% containerization

16. ☁️ AWS — 25% cloud services

17. 🔶 Svelte — 22% compile-time framework

18. 🔷 Next.js — 20% React framework

19. 🟣 Blazor — 18% .NET web apps

20. 🟢 Deno — 15% secure runtime

⌨️ CSS shortcuts!!

Save time and make your code cleaner with these CSS shortcuts.

How does Docker Work?

CSS notes 📝

Here are 20 essential VS Code shortcuts for beginners:

1. Ctrl + P: Open any file quickly 📂

2. Ctrl + /: Toggle line comment 📝

3. Alt + Up/Down: Move a line up or down ↕️

4. Ctrl + Shift + K: Delete the current line ❌

5. Ctrl + B: Show/hide the sidebar 📚

6. Ctrl + Space: Trigger IntelliSense for code suggestions 💡

7. Ctrl + Shift + F: Search across files 🔍

8. Ctrl + D: Select the next occurrence of the selected text 📑

9. Ctrl + Shift + L: Select all occurrences of the current selection 🔗

10. Ctrl + Shift + P: Open the Command Palette 📜

11. Ctrl + F2: Rename all occurrences of a variable ✏️

12. Ctrl + J: Show/hide the integrated terminal 💻

13. Ctrl + `: Open a new terminal 🔧

14. Ctrl + Shift + N: Open a new window 🖼️

15. Ctrl + W: Close the current editor tab 🗂️

16. Ctrl + Shift + E: Focus on the file explorer 🗃️

17. Ctrl + Shift + G: Open the Git view 🔄

18. Ctrl + Shift + M: Open the Problems panel 🚨

19. Alt + Shift + Up/Down: Copy the line up or down 📋

20. Ctrl + Alt + Arrow keys: Split the editor window ✂️


Master these and level up your coding speed! 🚀

Top 10 programming languages & frameworks for beginner web developers:

1. HTML/CSS – Basics of web structure & styling
2. JavaScript – Adds interactivity
3. Python – Backend & versatility
4. PHP – Server-side scripting
5. SQL – Database management
6. Ruby on Rails – Easy backend framework
7. Node.js – JavaScript backend runtime
8. React – Popular frontend library
9. Angular – Framework for building dynamic UIs
10. Bootstrap – Simplifies responsive design

Web Development Best Resources: https://topmate.io/coding/930165

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React interview questions answers

HTML CSS JS Project Ideas 💙✨

1. Personal Portfolio Website
2. Task Manager Application
3. Weather App
4. E-Commerce Product Slider
5. Interactive Quiz
6. To-Do List with Local Storage
7. Image Gallery
8. Calculator
9. Animated Landing Page
10. Personal Blogging Platform

Web Development Best Resources: https://topmate.io/coding/930165

ENJOY LEARNING 👍👍

Useful Cheatsheets for Free 😄👇

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Java Programming

PHP

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Pandas in 5 minutes

Python

GIT and Machine Learning

Javascript

HTML

Supervised Learning

Cybersecurity

Reinforcement Learning

VS Code

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Here are the 50 JavaScript interview questions for 2024

1. What is JavaScript?
2. What are the data types in JavaScript?
3. What is the difference between null and undefined?
4. Explain the concept of hoisting in JavaScript.
5. What is a closure in JavaScript?
6. What is the difference between “==” and “===” operators in JavaScript?
7. Explain the concept of prototypal inheritance in JavaScript.
8. What are the different ways to define a function in JavaScript?
9. How does event delegation work in JavaScript?
10. What is the purpose of the “this” keyword in JavaScript?
11. What are the different ways to create objects in JavaScript?
12. Explain the concept of callback functions in JavaScript.
13. What is event bubbling and event capturing in JavaScript?
14. What is the purpose of the “bind” method in JavaScript?
15. Explain the concept of AJAX in JavaScript.
16. What is the “typeof” operator used for?
17. How does JavaScript handle errors and exceptions?
18. Explain the concept of event-driven programming in JavaScript.
19. What is the purpose of the “async” and “await” keywords in JavaScript?
20. What is the difference between a deep copy and a shallow copy in JavaScript?
21. How does JavaScript handle memory management?
22. Explain the concept of event loop in JavaScript.
23. What is the purpose of the “map” method in JavaScript?
24. What is a promise in JavaScript?
25. How do you handle errors in promises?
26. Explain the concept of currying in JavaScript.
27. What is the purpose of the “reduce” method in JavaScript?
28. What is the difference between “null” and “undefined” in JavaScript?
29. What are the different types of loops in JavaScript?
30. What is the difference between “let,” “const,” and “var” in JavaScript?
31. Explain the concept of event propagation in JavaScript.
32. What are the different ways to manipulate the DOM in JavaScript?
33. What is the purpose of the “localStorage” and “sessionStorage” objects?
34. How do you handle asynchronous operations in JavaScript?
35. What is the purpose of the “forEach” method in JavaScript?
36. What are the differences between “let” and “var” in JavaScript?
37. Explain the concept of memoization in JavaScript.
38. What is the purpose of the “splice” method in JavaScript arrays?
39. What is a generator function in JavaScript?
40. How does JavaScript handle variable scoping?
41. What is the purpose of the “split” method in JavaScript?
42. What is the difference between a deep clone and a shallow clone of an object?
43. Explain the concept of the event delegation pattern.
44. What are the differences between JavaScript’s “null” and “undefined”?
45. What is the purpose of the “arguments” object in JavaScript?
46. What are the different ways to define methods in JavaScript objects?
47. Explain the concept of memoization and its benefits.
48. What is the difference between “slice” and “splice” in JavaScript arrays?
49. What is the purpose of the “apply” and “call” methods in JavaScript?
50. Explain the concept of the event loop in JavaScript and how it handles asynchronous operations.

Web Development Best Resources: https://topmate.io/coding/930165

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