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4 453
🔅 A CSS Unit Deep Dive - Learn CSS Units & When To Use Them
00:00 intro
01:09 Pixel unit
06:15 em & rem
12:10 %, vh, vw
14:12 ch unit
There’s at least 40+ different length units in the CSS specification and initially I was going to go over literally each one of them until I realized how silly of an idea that was. The truth is, many of these units should either not be used at all or are rarely used for web design.
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🔅 Ethical Hacking: Hacking Web Servers and Web Applications
🌐 Author: Malcolm Shore
🔰 Level: Intermediate
⏰ Duration: 1h 39m
🌀 Find out about the protocols used to access websites, and how to test websites and web applications to prevent exploitation through cyberattacks.📗 Topics: Ethical Hacking 📤 Join Ethical Hacking and Cybersecurity for more courses
4 453
MongoDB Learning Roadmap: From Basics to Advanced
1. Getting Started with MongoDB
Introduction to MongoDB: What is MongoDB and why use it? Difference between NoSQL and SQL databases.
Setup: Install MongoDB and Compass (GUI for MongoDB). Set up a local or cloud MongoDB instance using MongoDB Atlas.
2. Core Concepts
Databases and Collections: Understand databases, collections, and documents.
CRUD Operations: Perform Create, Read, Update, and Delete operations using MongoDB shell or Compass.
BSON: Understand how MongoDB stores data in BSON format.
3. Querying Data
Basic Queries: Filter documents using find(). Use operators like $eq, $ne, $lt, $gt, $in, and $nin.
Advanced Queries: Use $and, $or, $not, and $nor. Query arrays and embedded documents.
Projections: Return specific fields using projections in queries.
4. Indexes
Purpose of Indexes: Speed up queries and optimize performance.
Create and Manage Indexes: Single field, compound, and text indexes.
Understand Index Impact: Use the explain() method to analyze query performance.
5. Aggregation Framework
Introduction: Understand the pipeline approach in aggregation.
Basic Stages: $match, $group, $sort, $limit, $project, and $lookup.
Advanced Stages: $unwind, $addFields, $replaceRoot, and $facet.
6. Data Modeling
Schema Design: Differences between embedding and referencing documents.
Relationships: One-to-One, One-to-Many, and Many-to-Many relationships.
Best Practices: Design schemas for scalability and performance.
7. Transactions
Multi-Document Transactions: Implement ACID transactions in MongoDB.
Use Cases: When to use transactions in NoSQL.
8. Working with MongoDB in Applications
MongoDB Drivers: Integrate MongoDB with programming languages like Node.js (Mongoose), Python (PyMongo), and Java.
CRUD Operations in Code: Perform database operations using drivers.
9. Administration and Optimization
Backup and Restore: Use mongodump and mongorestore for backups.
Performance Optimization: Optimize queries, manage indexes, and shard data for horizontal scaling.
Security: Configure authentication, roles, and encryption for secure access.
10. Build Projects
Beginner: Create a basic CRUD app (e.g., contact manager).
Intermediate: Build an inventory management system or blog backend.
Advanced: Design a scalable social media backend with user posts, comments, and likes.
Deploy on MongoDB Atlas or integrate with cloud platforms.
📂 Web Development Resources
ENJOY LEARNING 👍👍
4 453
🔅 Learn CSS Flexbox in 20 Minutes (Course)
Learn how to create responsive websites with this CSS Flexbox Beginner Course. Display: flex; explained in 20 minutes.In this CSS Flexbox Crash Course for beginners you are going to learn about responsive web design by getting CSS Flexbox explained. How to use display: flex plays a major rule in making a website responsive, resize elements, wrap elements and align html elements anywhere inside a div. Of course you are also going to learn how to center a div.
4 453
🔅 Python: Working with Predictive Analytics
🌐 Author: Isil Berkun
🔰 Level: Advanced
⏰ Duration: 1h 17m
🌀 Find out how to use prebuilt Python libraries for predictive analytics and discover insights about the future.📗 Topics: Predictive Analytics, Python 📤 Join Learn Python for more courses
4 453
Today we cover CSS positions, from position absolute, fixed and sticky
#css #frontend #developer #webdev
4 453
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 __
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+6
JavaScript features you might not know! These 6 features were released in ECMAScript 2023 in June 2023.
Today we cover some of the new array methods released in JavaScript 2023 in order to make manipulating arrays easier.
4 453
Repost from Python
🔅 Python Functions for Data Science
🌐 Author: Lavanya Vijayan
🔰 Level: Intermediate
⏰ Duration: 1h 30m
🌀 Save time, and make your code more readable and reusable, by learning the most powerful Python functions for data science.📗 Topics: Data Analysis, Python 📤 Join Learn Python for more courses
4 453
🔰 SASS - The Complete SASS Course (CSS Preprocessor)
🌟 4.6 - 2301 votes 💰 Original Price: $69.99
📖 SASS - Learn SASS, the most popular CSS Extension. Build modern and beautiful projects using SASS and lots of CSS🔊 Taught By: Code And Create, George Lomidze 📤 Download Full Course 📤 Download All Courses
4 453
🔅 Learning Vue.js
🌐 Author: Michael Sullivan
🔰 Level: Intermediate
⏰ Duration: 1h 41m
🌀 Discover how Vue.js can help you build powerful and performant user interfaces while simplifying your JavaScript code. Find out why front-end developers love this framework.📗 Topics: Vue.js 📤 Join Learn JavaScript for more courses
4 453
🔅 Machine Learning with Scikit-Learn
🌐 Author: Michael Galarnyk
🔰 Level: Advanced
⏰ Duration: 43m
🌀 Learn to use scikit-learn, the popular open-source Python library, to build efficient machine learning models.📗 Topics: Scikit-Learn, Machine Learning 📤 Join Machine Learning and Artificial intelligence for more courses
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