Articles

cover of post: Level Up Your Web Scraping with Python & BeautifulSoup

Level Up Your Web Scraping with Python & BeautifulSoup

May 30, 2025

As the foundational language for web pages, HTML (Hypertext Markup Language) is widely used in fields such as web data processing and web development. Whether developers optimize web structures or data analysts extract information from web pages, HTML processing is indispensable. This tutorial focuses on core operations like HTML parsing, modification, and data extraction, helping readers master comprehensive methods and techniques for handling HTML.

JaJames Reed#python
cover of post: Go Generics: Everything You Need to Know

Go Generics: Everything You Need to Know

May 29, 2025

An overview of Go generics: syntax, examples, type constraints, and practical guidelines for developers.

JaJames Reed#Engineering
cover of post: Getting started with Poetry: The Python dev tool you should be using

Getting started with Poetry: The Python dev tool you should be using

May 29, 2025

In the field of Python development, package management has always been a core issue in project maintenance. Although the traditional tool `pip` can meet basic installation needs, as the scale of projects expands, its shortcomings in dependency resolution and virtual environment management gradually become apparent. For example, when manually removing packages, it cannot automatically handle dependency relationships, which may lead to environmental chaos or dependency conflicts. As a new generation of package management tools, Poetry not only integrates virtual environment management and dependency resolution functions but also provides a clearer project configuration and release process, making it one of the current preferred solutions for Python developers.

JaJames Reed#python
cover of post: How to Wait for Multiple Goroutines in Go: 4 Essential Methods

How to Wait for Multiple Goroutines in Go: 4 Essential Methods

May 28, 2025

A guide to synchronizing and waiting for multiple goroutines in Go, including best practices.

GrGrace Collins#Engineering
cover of post: Monitoring with Prometheus in Python and How Prometheus Works

Monitoring with Prometheus in Python and How Prometheus Works

May 28, 2025

**Prometheus** is an open-source system monitoring and alerting toolkit originally developed at SoundCloud. A core component of Prometheus is its data model, which defines the different data types used to represent monitored metrics. Understanding these data types is essential for effectively using Prometheus to collect, store, and query monitoring data. This article will delve into Prometheus data types, provide Python code examples to demonstrate their usage, analyze how they change over time (within one minute and five minutes), explain the underlying change principles, and finally present a Prometheus flowchart using English bash box diagrams.

GrGrace Collins#python
cover of post: Pure Python Reimplementation of FastAPI from Scratch

Pure Python Reimplementation of FastAPI from Scratch

May 27, 2025

In the realm of Python web development, FastAPI is widely favored by developers for its efficient and concise routing design, as well as its powerful functionality. FastAPI is built based on the ASGI (Asynchronous Server Gateway Interface) protocol, which is different from the traditional WSGI (Web Server Gateway Interface). This article will explore how to start from WSGI to implement a routing scheme similar to FastAPI, while deeply analyzing key concepts such as WSGI and Uvicorn and their interrelationships.

JaJames Reed#python
cover of post: Understanding the SQL `CASE` Statement: Syntax, Use Cases, and Examples

Understanding the SQL `CASE` Statement: Syntax, Use Cases, and Examples

May 26, 2025

SQL `CASE` adds powerful conditional logic for flexible querying.

JaJames Reed#Engineering
cover of post: How to Delete a Table in SQL

How to Delete a Table in SQL

May 26, 2025

Safely delete SQL tables using `DROP TABLE` and follow best practices.

GrGrace Collins#Engineering
cover of post: How to Connect to a MySQL Database Using phpMyAdmin and PHP

How to Connect to a MySQL Database Using phpMyAdmin and PHP

May 26, 2025

A guide to securely connecting PHP to MySQL using phpMyAdmin.

DaDaniel Hayes#Engineering
cover of post: Understanding Go's select: Concepts, Usage, and Best Practices

Understanding Go's select: Concepts, Usage, and Best Practices

May 26, 2025

Learn how to use Go's select statement to handle multiple channels, avoid deadlocks, and implement timeouts.

JaJames Reed#Engineering
cover of post: Go net/http Internals: TCP Socket Management

Go net/http Internals: TCP Socket Management

May 25, 2025

Overview of TCP connection management and socket handling in Go’s net/http package.

DaDaniel Hayes#Engineering
cover of post: Go Dependency Management with Modules: Everything You Need to Know

Go Dependency Management with Modules: Everything You Need to Know

May 25, 2025

Go has become a mainstream programming language in cloud computing and microservices due to its high performance and concise syntax. As project scales expand, traditional dependency management solutions (GOPATH + Vendor) increasingly reveal flaws in version conflicts, collaboration efficiency, and build reliability. Introduced in Go 1.11, Go Module—the official dependency management solution—restructures Go project dependency management through **modular design**, **semantic versioning**, and **automated dependency resolution**. This article dissects how Go Module achieves efficient and reliable dependency management from three dimensions: design principles, core components, and operational mechanisms.

JaJames Reed#golang
cover of post: Practical Guide to Pipeline Pattern in Go

Practical Guide to Pipeline Pattern in Go

May 25, 2025

Explores Go’s pipeline design pattern using goroutines and channels for efficient, concurrent data processing.

JaJames Reed#Engineering
cover of post: Inside Go’s sync.WaitGroup: The Story Behind Goroutine Synchronization

Inside Go’s sync.WaitGroup: The Story Behind Goroutine Synchronization

May 24, 2025

`sync.WaitGroup` is a basic tool for handling goroutine synchronization in Go language concurrent programming. Its design fully reflects the engineering practice principles such as memory alignment optimization, atomic operation safety, and error checking. By deeply understanding its data structure and implementation logic, developers can use this tool more safely and efficiently and avoid common pitfalls in concurrent scenarios. In practical applications, it is necessary to strictly follow the specifications such as count matching and sequential calling to ensure the correctness and stability of the program.

JaJames Reed#golang
cover of post: A Complete Guide to TLS in Go: Full Process Explained

A Complete Guide to TLS in Go: Full Process Explained

May 23, 2025

The TLS (Transport Layer Security) handshake is a vital procedure that enables secure communication between a client (such as a web browser) and a server (such as a web server). Below is a detailed breakdown of the entire TLS handshake process:

JaJames Reed#golang
cover of post: Deep Dive into Go Slices: Mechanics, Memory, and Optimization

Deep Dive into Go Slices: Mechanics, Memory, and Optimization

May 23, 2025

Explores Go slices’ internal structure, memory management, and best practices for performance optimization.

GrGrace Collins#Engineering
cover of post: Understanding the OFFSET Clause in SQL

Understanding the OFFSET Clause in SQL

May 23, 2025

OFFSET in SQL enables efficient pagination by skipping rows in query results.

JaJames Reed#Engineering
cover of post: SQL `CASE WHEN THEN ELSE` Formatting Best Practices

SQL `CASE WHEN THEN ELSE` Formatting Best Practices

May 23, 2025

Properly format SQL `CASE` statements for readable, maintainable queries.

GrGrace Collins#Engineering
cover of post: Understanding SQL ROW_NUMBER(): Syntax, Use Cases, and Examples

Understanding SQL ROW_NUMBER(): Syntax, Use Cases, and Examples

May 23, 2025

SQL `ROW_NUMBER()` assigns unique row numbers for ranking and filtering.

GrGrace Collins#Engineering
cover of post: Understanding PIVOT in SQL: Transforming Rows into Columns

Understanding PIVOT in SQL: Transforming Rows into Columns

May 21, 2025

PIVOT simplifies SQL data analysis by converting rows to columns.

JaJames Reed#Engineering
cover of post: Understanding the SQL DATEPART Function

Understanding the SQL DATEPART Function

May 21, 2025

SQL DATEPART extracts and analyzes specific date or time parts.

JaJames Reed#Engineering
cover of post: How to Use SQL ORDER BY with Multiple Columns

How to Use SQL ORDER BY with Multiple Columns

May 21, 2025

Sort SQL query results precisely using multiple columns.

JaJames Reed#Engineering
cover of post: Optimizing Go Performance: Practical Usage of sync.Pool and Escape Analysis

Optimizing Go Performance: Practical Usage of sync.Pool and Escape Analysis

May 21, 2025

Guide to efficient object reuse and memory allocation optimization in Go with sync.Pool and escape analysis.

JaJames Reed#Engineering
cover of post: Neural Networks in Go: A Complete Guide to Building from Scratch

Neural Networks in Go: A Complete Guide to Building from Scratch

May 21, 2025

This article will introduce how to use the Go programming language to build a simple neural network from scratch and demonstrate its workflow through the Iris classification task. It will combine principle explanations, code implementations, and visual structure displays to help readers understand the core mechanisms of neural networks.

JaJames Reed#golang
cover of post: Understanding SQL Common Table Expressions (CTEs)

Understanding SQL Common Table Expressions (CTEs)

May 20, 2025

CTEs make complex SQL queries more readable and support hierarchical data handling.

GrGrace Collins#Engineering
cover of post: How to Auto-Create SQL Tables: Methods and Best Practices

How to Auto-Create SQL Tables: Methods and Best Practices

May 20, 2025

Quick methods to automatically create SQL tables across databases.

JaJames Reed#Engineering
cover of post: Understanding SQL Variables: Declaration, Usage, and Best Practices

Understanding SQL Variables: Declaration, Usage, and Best Practices

May 20, 2025

SQL variables enable flexible, dynamic SQL code across databases.

GrGrace Collins#Engineering
cover of post: Resource Pooling in Go Explained: Best Practices, Anti-Patterns, and Monitoring

Resource Pooling in Go Explained: Best Practices, Anti-Patterns, and Monitoring

May 20, 2025

Explores pooling techniques, concurrency, pitfalls, and monitoring via Go’s database/sql connection pool example.

JaJames Reed#Engineering
cover of post: Understanding the SQL DECIMAL Data Type

Understanding the SQL DECIMAL Data Type

May 19, 2025

SQL DECIMAL ensures precise storage for exact numeric and financial data.

GrGrace Collins#Engineering
cover of post: Understanding and Resolving SQL Server Error 18456

Understanding and Resolving SQL Server Error 18456

May 19, 2025

Error 18456 is a SQL Server login failure resolved by checking credentials, authentication mode, and state codes.

GrGrace Collins#Engineering
cover of post: How to Use the GETDATE() Function in SQL Server

How to Use the GETDATE() Function in SQL Server

May 19, 2025

GETDATE() fetches current date and time for SQL Server queries.

GrGrace Collins#Engineering
cover of post: How Go's net/http Package Manages TCP Connections

How Go's net/http Package Manages TCP Connections

May 19, 2025

Inside net/http: Socket creation, connection pooling, and HTTP data flow in Go.

GrGrace Collins#Engineering
cover of post: Understanding the SQL LAG() Function

Understanding the SQL LAG() Function

May 18, 2025

SQL `LAG()` enables easy row-to-row comparison and trend analysis.

GrGrace Collins#Engineering
cover of post: How to Lint JSON: A Practical Guide

How to Lint JSON: A Practical Guide

May 18, 2025

Lint JSON for error-free, well-formatted, and consistent data using various tools.

GrGrace Collins#Engineering
cover of post: YAML vs JSON: A Comparative Analysis

YAML vs JSON: A Comparative Analysis

May 18, 2025

JSON excels in speed; YAML in readability and configuration clarity.

DaDaniel Hayes#Engineering
cover of post: A Guide to Gin Performance Optimization: Routing, Memory Pools, and Async Tasks

A Guide to Gin Performance Optimization: Routing, Memory Pools, and Async Tasks

May 18, 2025

Best practices for boosting Gin app performance, stability, and scalability.

GrGrace Collins#Engineering
cover of post: 16 Advanced Django Questions You Should Know

16 Advanced Django Questions You Should Know

May 18, 2025

When moving from beginner to advanced Django development, developers often encounter complex and challenging issues. This article compiles 16 common questions in advanced Django development and provides answers with rich examples to help developers master advanced Django development techniques.

GrGrace Collins#python
cover of post: Go Option Pattern Explained: Advanced Parameter Handling

Go Option Pattern Explained: Advanced Parameter Handling

May 17, 2025

Learn how the Option pattern simplifies parameter management and enhances code flexibility in Go projects.

GrGrace Collins#Engineering
cover of post: All You Need Is Express and JSX

All You Need Is Express and JSX

May 17, 2025

Node.js combined with Express.js remains a golden combination for building efficient web applications. When we need to provide dynamic HTML content to the client, Express introduces the concept of a "view engine". Over the years, EJS (Embedded JavaScript) has become a popular choice due to its simplicity. However, since the advent of React, JSX (JavaScript XML), with its component-based UI construction approach, has gained enormous favor among developers, and its philosophy is also fully applicable to server-side rendering.

DaDaniel Hayes#javascript
cover of post: Choosing Between make and new in Go

Choosing Between make and new in Go

May 16, 2025

Covers key distinctions and best practices for using make and new in Go.

DaDaniel Hayes#Engineering
cover of post: A Practical Comparison of Decorators in Python, Java, JavaScript, Ruby, and Scala

A Practical Comparison of Decorators in Python, Java, JavaScript, Ruby, and Scala

May 16, 2025

In the development of cloud service deployment platforms like Leapcell, code modularity, maintainability, and scalability are of utmost importance. As a powerful programming construct, decorators enable the addition of extra functionality to functions or classes without modifying the core logic of the original code. Decorators in different programming languages vary in syntax, functionality, and application scenarios. This article will deeply compare the similarities and differences of decorators in Python, Java, JavaScript (TypeScript), Ruby, and Scala, and provide examples combined with server-side scenarios of the Leapcell cloud service.

DaDaniel Hayes#programming
cover of post: XML vs JSON: A Comprehensive Comparison

XML vs JSON: A Comprehensive Comparison

May 15, 2025

XML excels in validation; JSON is efficient for web data exchange.

DaDaniel Hayes#Engineering
cover of post: How to Pretty Print JSON

How to Pretty Print JSON

May 15, 2025

Pretty print JSON for better readability using code or online tools.

JaJames Reed#Engineering
cover of post: How to Escape JSON: A Comprehensive Guide

How to Escape JSON: A Comprehensive Guide

May 15, 2025

Properly escaping JSON prevents errors and ensures data can be safely exchanged.

DaDaniel Hayes#Engineering
cover of post: Implementing Bloom Filters in Go for Efficient Caching

Implementing Bloom Filters in Go for Efficient Caching

May 15, 2025

How Bloom filters in Go help eliminate invalid queries and ease database pressure in cache systems.

GrGrace Collins#Engineering
cover of post: How to Convert a String to JSON in JavaScript, Python, and Java

How to Convert a String to JSON in JavaScript, Python, and Java

May 14, 2025

Convert strings to JSON safely using built-in or trusted libraries.

JaJames Reed#Engineering
cover of post: How to Compare JSON: A Practical Guide

How to Compare JSON: A Practical Guide

May 14, 2025

Efficiently compare JSON using tools, normalization, and automation.

GrGrace Collins#Engineering
cover of post: How to Read JSON in Python

How to Read JSON in Python

May 14, 2025

Read and handle JSON data in Python using the `json` module.

GrGrace Collins#Engineering