# 27. Rehe Road

> Taken at Rehe Road, Nanjing. Just a simple street sign, but there’s a certain crispness to it that I really liked.

- Issue: 27
- Published: 2021/05/25
- HTML: https://weekly.tw93.fun/en/posts/27
- JSON: https://weekly.tw93.fun/api/en/posts/27.json
- Chinese original: https://weekly.tw93.fun/posts/27.md

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<img src="https://gw.alipayobjects.com/zos/k/44/DSC06704.jpeg" width="800" />

<small>Taken at Rehe Road, Nanjing. Just a simple street sign, but there's a certain crispness to it that I really liked.</small>

> **Record the down-to-earth trending technologies seen every week, and publish them here after screening. If you find it good, you can follow this weekly to get update notifications.**

## Front-End Technology

**Which JavaScript Loop is the Absolute Fastest?**  
<https://juejin.cn/post/6930973929452339213>  
Before you click: based on your intuition, which looping pattern do you think wins on performance?

**So You Want to Build a Rendering Engine? (HTML Parsing)**  
<https://mp.weixin.qq.com/s/8TQQA61hobMFLs9O5vbxWg>  
The second entry in a fantastic series for anyone looking to understand the core mechanics of how browsers actually work.

**A Refresher on Browser Caching**  
<https://juejin.cn/post/6947936223126093861>  
Browser cache is one of those topics you can never stop learning. A great summary for modern web development.

**3 Typography Principles Every Programmer Should Know**  
<https://mp.weixin.qq.com/s/9RotXR2VyBtCNhD5borBrw>  
Design isn't just about "making things pretty"—it's about ensuring clarity and ease of use.

**Exhaustive Deep Dive into React Hooks**  
<https://juejin.cn/post/6944863057000529933>  
A great guide for filling in the gaps in your knowledge of React’s reactivity model.

## Trending Open Source

**Maccy: A Lightweight Clipboard Manager for Mac**  
<https://github.com/p0deje/Maccy>  
Keep a persistent history of everything you've copied. simple, fast, and an absolute productivity essential.  
<img src="https://cdn.tw93.fun/blog/upic/ELTqbC.gif" width="800" />

**mac-cleanup: Clean Your Mac via the Command Line**  
<https://github.com/fwartner/homebrew-mac-cleanup>  
Setup an alias like `alias clean="mac-cleanup -n"` in your .zshrc for a much smoother maintenance experience.  
<img src="https://cdn.tw93.fun/blog/upic/GcuV5w.jpg" width="800" />

**OrgChart: Visualizing Tree Structures with Tables**  
<https://github.com/dabeng/OrgChart>  
A very creative implementation that uses nested tables and CSS borders to construct beautiful tree diagrams with minimal complexity.

**Gaze-detection: Control Your Computer with Your Eyes**  
<https://github.com/charliegerard/gaze-detection>  
An impressive look at what’s possible with browser-based computer vision. Imagine "aiming" just by looking!  
<img src="https://cdn.tw93.fun/blog/upic/5vBkaT.gif" width=500 />

**Ryujinx: A High-Performance Nintendo Switch Simulator**  
<https://github.com/Ryujinx/Ryujinx>  
Another entry in the "I can't believe this exists" category of open source.  
<img src="https://cdn.tw93.fun/blog/upic/zLeeAx.jpg" width="800" />

## Just Looking Around

**Implementing a Lightweight MVVM Framework in Mobile Clients**  
<https://juejin.cn/post/6947583052377751560>  
Looking at this through a frontend lens makes for a very interesting comparison of reactivity patterns.

**Great "Wheels" on iOS-GitHub**  
<https://juejin.cn/post/6937570017202405406>  
A curated collection of exceptional iOS components and libraries—perfect for learning through imitation.

**The "Beautiful Biker" Who Was Actually a 50-Year-Old Man**  
<https://mothership.sg/2021/03/japanese-biker-actually-man/>  
A viral story of a Japanese biker who used FaceApp to transform their appearance. You can find their original Twitter at [azusagakuyuki](https://twitter.com/azusagakuyuki).  
<img src="https://cdn.tw93.fun/blog/upic/2B4l2w.jpg" width="800" />