A Brief Analysis of Array.sort — This article is not about common native JavaScript sort pitfalls, such as the default string conversion and char code ordering causing unexpected results. Today, we're diving into the underlying implementation behind JavaScript's sort.
In databases, creating indexes can significantly improve query performance when dealing with large amounts of data. This article explores indexes in PostgreSQL. While using the standard `CREATE INDEX` syntax is sufficient for most everyday development scenarios, PostgreSQL also offers many different index types to choose from.
Recognize one fact: tables are meant for reading, not for flashy visuals. Recently, I've had frequent needs to use tables in admin dashboards. Designing a user-friendly table is a challenge, especially when dealing with large datasets and many columns...
This November 11th, beyond all the Double 11 shopping sprees across major e-commerce platforms, happens to be my 23rd birthday.
Medium doesn't natively support code block editing. While the reason behind this remains unclear (perhaps engineers aren't their primary audience), if you want syntax highlighting, one workaround is posting images, and another is embedding code via GitHub Gist.
When developing with Express, errors are usually printed directly onto an error page or redirected to a 404/500 page in production. While there's nothing out of the ordinary about that, honestly, does seeing a page like this make you happy? default error…
React v16 is finally officially released! The official blog already provides a fairly comprehensive (and visually pleasing) introduction. This post serves as notes and a summary, condensing some of the details. 1. componentDidPatch(error, info) The standout feature of React 16 is the addition of Error Boundary functionality to ensure that errors during lifecycle...
From July 2015 to October 2016, a span of over a year, I started my first internship during the second semester of my sophomore year—at Sudo. Back then, Sudo had just been founded (though the official website was mostly built and constantly iterating), and there were only about 13 or 14 people when I joined.
I finally found time to write up my recent interview experiences. To summarize a few observations first: Most companies only test your familiarity with JavaScript, mostly around algorithms or explaining prototype chains, and rarely test DOM or event manipulation. They almost never test CSS, or at most just basic questions like class/ID specificity. No interview tested HTML…
Ramda is an exceptionally useful library. If you've heard of Lodash or Underscore, you can think of Ramda as the functional programming counterpart to Lodash. While their APIs share many similarities, the difference is that Ramda is inherently built for FP. If you omit arguments from any API, Ramda automatically...
In machine learning, having too many features can cause several issues, such as overfitting...
Having self-studied Japanese for over three years, I created a weekly newsletter called Nihongo Yaoya. Facebook Page, Medium...
At my current company, deployments were done directly from local terminals using `cap staging deploy`. While Capistrano is a very convenient tool for automated deployments, several issues naturally arise: not everyone on the team shares the same environment, and when multiple people deploy, it becomes confusing to track which branch is currently on staging...
Today marks the final day of the Ironman challenge. I feel like the ending was a bit rushed, and due to time constraints, quite a few topics weren't covered as thoroughly as I would have liked.
In front-end web development, we often encounter the need for equal-height layouts. The most intuitive approach is to set all elements within a container to float or inline-block. float and inline-block When using float for layouts, not only do you have to clear floats to expand the parent container (clearfix), but you also have to configure margins for child elements...
Previously, I wrote a post about my thoughts on CSS variables. Initially, I didn't have high expectations for this feature—being used to SASS variables, CSS variables felt like a clumsy system in comparison. But if you feel the same way, you might want to check out this article.
From Sass to PostCSS. About a year ago, PostCSS started gaining popularity across the front-end ecosystem, driven by its preprocessor capabilities, highly customizable plugins, early access to cssnext features, and seamless integration with build tools (Gulp, Webpack…
No jokes today—let's talk about something serious. Marking my one-year anniversary at Sudo and looking back at the person who walked into AppWorks a year ago, it feels like I've come a long way. Confessions of a senior intern.
A bonus episode of Sudo's after-work routine—a plank showdown initiated by our RD lead. Is muscular fitness directly proportional to coding prowess? The answer will be revealed at the very end.
g0v was originally founded because of a government ad—specifically, the "Economic Power-Up Plan" (the most ridiculous ad in history). A group of passionate engineers decided to form g0v, dedicated to promoting open government and spreading the word to the public through the internet. g0v rose to prominence during the March 18 Sunflower Student Movement, when tools like collaborative hackfoldr workspaces and live-streaming setups...