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tutorial
933 posts
#145 — Insert Blank Row when Meeting with Data Change
Problem description & analysis: Here below is a data table: Task: We want to insert one blank row…
🚀 Testing Strategies: Essential Tips and Tricks for Developers
Advanced Testing Strategies for Modern Development (2025) Introduction In the rapidly evolving software development landscape, rigorous testing plays…
How to Build a Profitable Digital Art Business: A Comprehensive Developer Roadmap
If you’re ready to stop wasting time and start making real money selling your digital art, this roadmap…
Linux 101: Part 5 – Mastering VI Editor: A Beginner’s Guide to Text Editing, Navigation, and Essential Commands
Introduction to VI Editor The VI Editor is one of the most powerful and widely used text editors…
How to Write Technical Documentation in 2025: A Step-by-Step Guide
“I wrote this code three months ago, and now I can’t understand it at all…” “Where’s the project…
#143 — Expand One Row into Multiple Rows after Splitting Text
Problem description & analysis: The following is a data table, in which columns D and E have multiple…
Deploying Serverless Functions Across Regions with AWS Lambda
Providing seamless user experiences across different regions is crucial in a globalized digital world. Deploying AWS Lambda functions…
#139 — Interconversion of Rows and Columns in Reverse Order
Problem description & analysis: Here below is a data table: Task: Now we want to transpose the M…
10 JavaScript Tips for Beginners🚀
Master the Basics: Start with the fundamentals—variables (let, const, var), data types (strings, numbers, booleans, etc.), and basic…
Storing and Querying OpenAI Embeddings in PostgreSQL with pg_vector
In this guide, we’ll explore how to effectively store, index, and query embeddings generated from OpenAI’s text-embedding-3-small model…