Hyunjoon Kim: Want a quick demo? We also made a short intro video showing how it all works: https://youtu.be/4XMjJPNmuBM (4/n)

Hackers’ Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Hyunjoon Kim @d01c2@hackers.pub

4/25/2025, 10:42:59 AM

Public

ECMAScript Double Debugger, an ECMAScript interpreter with states of both ECMAScript programs and the specification. Run it locally or try the online version: https://es-meta.github.io/playground/ (3/n)

ECMAScript Debugger

Web site created using create-react-app

es-meta.github.io

Hyunjoon Kim @d01c2@hackers.pub

4/25/2025, 10:43:36 AM

Public

Want a quick demo? We also made a short intro video showing how it all works: https://youtu.be/4XMjJPNmuBM (4/n)

Double Debugger and ECMA Visualizer

0:00 Introduction0:38 Double Debugger12:21 ECMA Visualizer

www.youtube.com · YouTube

If you have a fediverse account, you can reply to this note from your own instance. Search https://hackers.pub/ap/notes/01966c8b-afe9-77ec-bee6-5d40feb263c9 on your instance and reply to it.

Hyunjoon Kim @d01c2@hackers.pub

4/25/2025, 10:43:50 AM

Public

Actually, this is not an official tweet for introducing our toolchain. Just wanted to casually share that we've built these cool tools - if you're interested in deeper understanding of ECMA-262 and JavaScript, give them a try! (5/n)