๐ Welcome to Code & Connect! ๐
Weโre thrilled to have you here! This channel is your go-to space for all things programming and technology. Whether youโre looking to enhance your coding skills, stay updated on the latest trends, or connect with fellow tech enthusiasts, youโve come to the right place!
๐ What to Expect:
Tips and tutorials on various programming languages
Insights into RESTful APIs and web development
Tech news and updates
Engaging discussions and Q&A sessions
๐ฌ Join the Conversation! Feel free to introduce yourself and share what youโre most excited to learn. Letโs embark on this coding journey together!
Happy coding! ๐ปโจ
#CodeAndConnect #Programming #TechCommunity
Weโre thrilled to have you here! This channel is your go-to space for all things programming and technology. Whether youโre looking to enhance your coding skills, stay updated on the latest trends, or connect with fellow tech enthusiasts, youโve come to the right place!
๐ What to Expect:
Tips and tutorials on various programming languages
Insights into RESTful APIs and web development
Tech news and updates
Engaging discussions and Q&A sessions
๐ฌ Join the Conversation! Feel free to introduce yourself and share what youโre most excited to learn. Letโs embark on this coding journey together!
Happy coding! ๐ปโจ
#CodeAndConnect #Programming #TechCommunity
๐๐ง๐ง๐ฃ ๐ ๐ฒ๐๐ต๐ผ๐ฑ๐ ๐๐
๐ฝ๐น๐ฎ๐ถ๐ป๐ฒ๐ฑ
In RESTful APIs, HTTP methods are essential for communication between clients and servers. Here's a quick overview of the most commonly used methods:
๐ญ. ๐๐๐ง: Retrieve data from a resource without modifying it.
๐ฎ. ๐ฃ๐ข๐ฆ๐ง: Submit data to create or update a resource.
๐ฏ. ๐ฃ๐จ๐ง: Replace an entire resource with the provided payload.
๐ฐ. ๐๐๐๐๐ง๐: Remove a resource from the server.
๐ฑ. ๐๐๐๐: Fetch only the headers of a resource, excluding the body.
๐ฒ. ๐ฃ๐๐ง๐๐: Partially update an existing resource.
๐ณ. ๐ข๐ฃ๐ง๐๐ข๐ก๐ฆ: Request available communication options for a resource.
๐ด. ๐ง๐ฅ๐๐๐: Echo back the request for diagnostic purposes.
๐ต. ๐๐ข๐ก๐ก๐๐๐ง: Establish a network tunnel for communication, often used with proxies.
These methods form the backbone of REST API interactions in modern web development.
๐ Keep learning, keep sharing!
Credit - Nadeem Ahmad
In RESTful APIs, HTTP methods are essential for communication between clients and servers. Here's a quick overview of the most commonly used methods:
๐ญ. ๐๐๐ง: Retrieve data from a resource without modifying it.
๐ฎ. ๐ฃ๐ข๐ฆ๐ง: Submit data to create or update a resource.
๐ฏ. ๐ฃ๐จ๐ง: Replace an entire resource with the provided payload.
๐ฐ. ๐๐๐๐๐ง๐: Remove a resource from the server.
๐ฑ. ๐๐๐๐: Fetch only the headers of a resource, excluding the body.
๐ฒ. ๐ฃ๐๐ง๐๐: Partially update an existing resource.
๐ณ. ๐ข๐ฃ๐ง๐๐ข๐ก๐ฆ: Request available communication options for a resource.
๐ด. ๐ง๐ฅ๐๐๐: Echo back the request for diagnostic purposes.
๐ต. ๐๐ข๐ก๐ก๐๐๐ง: Establish a network tunnel for communication, often used with proxies.
These methods form the backbone of REST API interactions in modern web development.
๐ Keep learning, keep sharing!
Credit - Nadeem Ahmad
Key Concepts to Understand Database Sharding.
In this concise and visually engaging resource, we break down the key concepts of database partitioning, explaining both vertical and horizontal strategies.
1. Range-Based Sharding: Splitting your data into distinct ranges. Think of it as organizing your books by genre on separate shelves.
2. Key-Based Sharding (with a dash of %3 hash): Imagine each piece of data having a unique key, and we distribute them based on a specific rule. It's like sorting your playing cards by suit and number.
3. Directory-Based Sharding: A directory, like a phone book, helps you quickly find the information you need. Similarly, this technique uses a directory to route data efficiently.
Over to you: What are some other ways to scale a database?
Subscribe to our weekly newsletter to get a Free System Design PDF (158 pages): https://bit.ly/3KCnWXq
Credit - ByteByteGo
In this concise and visually engaging resource, we break down the key concepts of database partitioning, explaining both vertical and horizontal strategies.
1. Range-Based Sharding: Splitting your data into distinct ranges. Think of it as organizing your books by genre on separate shelves.
2. Key-Based Sharding (with a dash of %3 hash): Imagine each piece of data having a unique key, and we distribute them based on a specific rule. It's like sorting your playing cards by suit and number.
3. Directory-Based Sharding: A directory, like a phone book, helps you quickly find the information you need. Similarly, this technique uses a directory to route data efficiently.
Over to you: What are some other ways to scale a database?
Subscribe to our weekly newsletter to get a Free System Design PDF (158 pages): https://bit.ly/3KCnWXq
Credit - ByteByteGo
We know that JavaScript is a single-threaded language, which simply means that it can handle only one task at a time.
But if that's the case, how does it handle asynchronous operations (like Promises) and that too pretty efficiently? This is possible thanks to something called the Event Loop. The event loop works in the following manner:
1. Call Stack: When our code runs, functions are pushed into a stack (known as the call stack) and processed one after the other. If these functions call other functions, the new functions are placed on top of the stack, above the parent function that called them.
2. Web APIs/Task Queue: When asynchronous operations (like setTimeout or I/O tasks) are encountered, they are sent to the browser's Web APIs, which handle them separately from the call stack. This means that these asynchronous operations are not handled by the JavaScript runtime itself. The task queue is further divided into two parts: the Macrotask Queue and the Microtask Queue.
โข The Macrotask Queue includes tasks like setTimeout, setInterval, and I/O tasks.
โข The Microtask Queue includes tasks like Promises (specifically, the .then() and .catch() handlers).
After each macrotask completes, the event loop first checks and processes all the tasks in the microtask queue before doing the next macrotask. This is why tasks in the microtask queue are always executed first, even if they are scheduled after macrotasks.
3. Event Loop: Once the asynchronous task is complete, the event loop checks if the call stack is empty. If it is, the results (callbacks or events, not the original asynchronous tasks themselves) from the task queue are pushed into the call stack to be executed. This cycle continues indefinitely.
This brilliant mechanism allows JavaScript to appear as though it is multitasking, when in reality, it simply juggles tasks in an efficient order.
Credit - Prince Raj
But if that's the case, how does it handle asynchronous operations (like Promises) and that too pretty efficiently? This is possible thanks to something called the Event Loop. The event loop works in the following manner:
1. Call Stack: When our code runs, functions are pushed into a stack (known as the call stack) and processed one after the other. If these functions call other functions, the new functions are placed on top of the stack, above the parent function that called them.
2. Web APIs/Task Queue: When asynchronous operations (like setTimeout or I/O tasks) are encountered, they are sent to the browser's Web APIs, which handle them separately from the call stack. This means that these asynchronous operations are not handled by the JavaScript runtime itself. The task queue is further divided into two parts: the Macrotask Queue and the Microtask Queue.
โข The Macrotask Queue includes tasks like setTimeout, setInterval, and I/O tasks.
โข The Microtask Queue includes tasks like Promises (specifically, the .then() and .catch() handlers).
After each macrotask completes, the event loop first checks and processes all the tasks in the microtask queue before doing the next macrotask. This is why tasks in the microtask queue are always executed first, even if they are scheduled after macrotasks.
3. Event Loop: Once the asynchronous task is complete, the event loop checks if the call stack is empty. If it is, the results (callbacks or events, not the original asynchronous tasks themselves) from the task queue are pushed into the call stack to be executed. This cycle continues indefinitely.
This brilliant mechanism allows JavaScript to appear as though it is multitasking, when in reality, it simply juggles tasks in an efficient order.
Credit - Prince Raj
Why do React components need to start with capital letters?
If youโve ever worked with React, you might have noticed that component names always start with capital letters. But do you know why? ๐ค
In JSX, React components are written in a syntax that gets transformed into plain JavaScript using the React.createElement API, thanks to Babel. Hereโs where the capital letter comes in:
When Babel encounters a name starting with a capital letter, it knows itโs dealing with a React component and converts it into a React Fiber object (a key part of Reactโs rendering system).
On the other hand, if the name starts with a lowercase letter, Babel treats it as a string rather than a component. This helps React differentiate between native HTML elements and custom components!
So, always remember to capitalize your component names for React to interpret them correctly. ๐ก
Credit - Vasudevan LK
If youโve ever worked with React, you might have noticed that component names always start with capital letters. But do you know why? ๐ค
In JSX, React components are written in a syntax that gets transformed into plain JavaScript using the React.createElement API, thanks to Babel. Hereโs where the capital letter comes in:
When Babel encounters a name starting with a capital letter, it knows itโs dealing with a React component and converts it into a React Fiber object (a key part of Reactโs rendering system).
On the other hand, if the name starts with a lowercase letter, Babel treats it as a string rather than a component. This helps React differentiate between native HTML elements and custom components!
So, always remember to capitalize your component names for React to interpret them correctly. ๐ก
Credit - Vasudevan LK
Java SpringBoot Roadmap :
โค 1. Java SE
1.1. OOP.
1.2. Exception Handling.
1.3. Multithreading.
1.4. Collections(List,Set,Map, ... )
1.5. JDBC
1.6. It is required to be familir with hashtag
hashtag#java8 features stream and lambda expressions
โค 2. DBMS
2.1. Data modeling
2.2. Relational data Model
2.3. Normalization
2.4. Transaction Processing
2.5. Concurrency Control
โค 3. Java EE
3.1. Servlets
3.2. JSP
3.3. JSTL
โค 4. Hibernate
โค 5. Web Service
5.1. RESTful API (The Most popular With Spring)
5.2. It is better to be familiar with SOAP Web Service
โค 6. Spring
6.1. Spring Core
6.2. Spring Data
6.3. Spring MVC
6.4. Spring RESTful API
6.5. Spring Boot
6.6. Spring Security
โค 7. Advanced Topics
7.1. Solid principles
7.2. Design Pattern
7.3. Microservices and Spring Cloud
โค 8. maven and Git
Credit - Rani Dhage
โค 1. Java SE
1.1. OOP.
1.2. Exception Handling.
1.3. Multithreading.
1.4. Collections(List,Set,Map, ... )
1.5. JDBC
1.6. It is required to be familir with hashtag
hashtag#java8 features stream and lambda expressions
โค 2. DBMS
2.1. Data modeling
2.2. Relational data Model
2.3. Normalization
2.4. Transaction Processing
2.5. Concurrency Control
โค 3. Java EE
3.1. Servlets
3.2. JSP
3.3. JSTL
โค 4. Hibernate
โค 5. Web Service
5.1. RESTful API (The Most popular With Spring)
5.2. It is better to be familiar with SOAP Web Service
โค 6. Spring
6.1. Spring Core
6.2. Spring Data
6.3. Spring MVC
6.4. Spring RESTful API
6.5. Spring Boot
6.6. Spring Security
โค 7. Advanced Topics
7.1. Solid principles
7.2. Design Pattern
7.3. Microservices and Spring Cloud
โค 8. maven and Git
Credit - Rani Dhage