Blogs

I recently enjoyed a wonderful 3-day trip to Bao Loc, a city in the central highlands of Vietnam. I chose this destination because I was amazed by my previous trip to Ta Dung (which is also in central Vietnam), and I wanted to discover more of Vietna...

Lately, I’ve been improving the writing experience in my Rails app, and something kept bugging me: I wanted a way to add inline code formatting in the Trix editor, just like those snippets you see on blogs and documentation sites.Turns out, Trix does...

I just got back from an amazing trip to Hanoi, and I have to tell you all about it. I went in mid-October, right in the heart of autumn, and the city was just breathtaking. The cool air and that beautiful yellow sunlight made it perfect for exploring...

Hey there! Ever wondered how you can log into Gmail and then magically find yourself logged into YouTube, Google Drive, and all other Google services without lifting a finger? This behind-the-scenes technique is called Single Sign-On (SSO)In this blo...

JavaScript interviews often include questions about asynchronous programming, as it's a fundamental concept in modern web development. One common challenge is understanding the intricate dance between Promises, timers, and the event loop. The Ch...

When I first started learning JavaScript, its object-oriented features felt like an afterthought. The language had objects and prototypal inheritance, but it was missing key features like true private fields and methods. That’s why many developers tu...

Rails Active Record is convenient and human-readable for interacting with SQL models. But not understanding the generated SQL behind these elegant methods can cause serious data loss that might go unnoticed until it's too late.1. Setting the SceneThi...

In school, you may have studied standard convolution in your lectures. Standard convolution is effective for image processing, but it requires a significant number of parameters and heavy computational resources. Recently, several research advances h...

With the release of Rails 7.2, a new change was introduced to the way ActiveRecord models are inspected in the Rails console. Prior to this version, calling inspect on an ActiveRecord model instance would display all the model's attributes by default...

I've been using AI tools in my development process for a while now, and they've significantly boosted my performance by reducing the knowledge gap. In today's post, I'll share my process of building custom image tools using AI. App: https://img-tools...

One day, I encountered a troubling issue when my Amazon EC2 server ran out of storage space. After investigating, I discovered that Docker was consuming a significant portion, largely due to the accumulation of cache. In this blog post, I'll provide ...

In this post, we'll dive into what YJIT is, how to enable it in your Rails app, and how to monitor and configure it for optimal performance. What is YJIT?YJIT is a lightweight Just-In-Time (JIT) compiler introduced in Ruby to speed up method executio...