Search Articles — Sudonull

https://sudonull.com/speeding-up-regex-search-with-trigrams-in-cursor

Local indexing of trigrams and sparse n-grams speeds up code search for AI agents. Reducing time from 15s to milliseconds in large repositories. More details for developers.

https://sudonull.com/regexp-escape-escapes-letters-and-spaces-why

Breakdown of RegExp.escape(): escaping digits, letters, spaces for RegExp concatenation. Code examples, comparison with custom functions. For middle/senior JS developers.

https://sudonull.com/cursor-trigram-indexes-for-fast-regex-search

Learn how Cursor sped up regex search in the IDE via local trigram indexes and sparse n-grams. Details on implementation for monorepo. Dive into optimization for middle/senior dev.

https://sudonull.com/bypassing-pac1-without-ai-finite-state-machine-in-python

Learn how to create Zero-Cost Agent for PAC1 benchmark: regex script bypasses security traps and manages state without LLM. Full code and analysis for developers.

https://sudonull.com/javascript-date-parser-hidden-errors-and-fixes

Breakdown of the new Date(string) mechanism in JS: why it parses any text, timezone problems and how to avoid bugs in production. For developers: regex-validation and alternatives.

https://ymaho.com/regenerative-care-instead-of-anti-aging-cosmetics-trend-2026

Exosomes and peptides are displacing anti-wrinkle creams. Find out why regenerative aesthetics is growing by 13% per year and who is making billions. Read the analysis.

https://ymaho.com/neohelix-regenerate-basf-peptide-for-adaptive-collagen

BASF introduced the NeoHelix Regenerate peptide for targeted collagen repair. Learn how CHP technology is changing anti-aging care and the ingredient market. Read the analysis!

https://ymaho.com/optic-nerve-regeneration-gene-therapy-and-stimulation

Nature breakthrough: optic nerve regeneration in mice using gene therapy and visual stimulation. Analysis of implications for glaucoma treatment and the market. Learn more.

https://ymaho.com/tooth-enamel-regeneration-drug-truth-and-fda-risks

FDA approved EnamelReGen-S for enamel restoration, but hidden risks are high: detachment, pulp inflammation, and aesthetic defects. Learn the whole truth before the procedure.

https://ymaho.com/exosomes-and-pdrn-k-beauty-regeneration-trends-2026

Analysis of K-beauty's shift from hydration to regeneration. Exosomes, PDRN, Skin Longevity — a hidden industrial revolution. Read forecasts and insights.

https://ymaho.com/fda-approved-the-first-gene-therapy-for-hereditary-deafness

Regeneron's Otarmeni restores hearing to normal in 42% of patients. The therapy treats OTOF gene mutations with a single injection. Learn how AAV vector technology has for the first time restored the ability to hear a whisper.

https://ymaho.com/biotechnologies-in-cosmetology-exosomes-and-peptides

How exosomes and peptides replace hyaluronic acid in aesthetic medicine. Learn about real breakthroughs and marketing myths in skin regeneration. Read the review.

https://ymaho.com/pdrn-and-exosomes-a-new-standard-of-anti-age-care

Korean anti-age is shifting to PDRN and exosomes. Find out why cell regeneration is replacing retinol and how to choose a safe biostimulator.

https://ymaho.com/babor-updates-anti-aging-care-exosomes-and-nad

BABOR launches professional line with exosomes, sirtuins and NAD⁺. Find out how cellular regeneration will change your protocol. Read insights and benefits for clinics.

https://ymaho.com/pharma-biotics-pdrn-and-exosomes-in-k-beauty-2026

Analysis of the PDRN and exosome boom in Korea: why mass brands are losing, prices 6-10 times lower than procedures, risks and forecasts. Read about the revolution of regenerative care.

regex101: build, test, and debug regex

https://regex101.com/

Online regex tester and debugger. Test, explain, benchmark, and generate code for PCRE2, JavaScript, Python, Go, Java, .NET, …

RegExr: Learn, Build, & Test RegEx

https://regexr.com/

RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp). Supports JavaScript & PHP/PCRE RegEx. …

Regular expression - Wikipedia

https://en.wikipedia.org/wiki/Regular_expression

The phrase regular expressions, or regexes, is often used to mean the specific, standard textual syntax for representing patterns for …

Regex Tutorial - How to write Regular Expressions

https://www.geeksforgeeks.org/dsa/write-regular-expressions/

Dec 22, 2025 · A regular expression (regex) is a sequence of characters that defines a search pattern. It is mainly used for pattern …

Regex Cheat Sheet - rexegg.com

https://www.rexegg.com/regex-quickstart.php

If you are a complete beginner, you should get a firm grasp of basic regex syntax just by reading the examples in the tables. I tried to …

Python RegEx - W3Schools

https://www.w3schools.com/python/python_regex.asp

A RegEx, or Regular Expression, is a sequence of characters that forms a search pattern. RegEx can be used to check if a string …

SimpleRegex - Free Online Regex Tester & Pattern Generator

https://www.simpleregex.org/

Test and generate regular expressions in real-time. Free online regex tool for developers with syntax highlighting, pre-built examples, …

Regular expression syntax cheat sheet - JavaScript | MDN

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions/Cheatsheet

Mar 17, 2026 · This page provides an overall cheat sheet of all the capabilities of RegExp syntax by aggregating the content of the …

Regular Expression Language - Quick Reference - .NET

https://learn.microsoft.com/en-us/dotnet/standard/base-types/regular-expression-language-quick-reference

Jun 18, 2022 · Each section in this quick reference lists a particular category of characters, operators, and constructs that you can …

regex101: Regex tutorial

https://regex101.com/r/rsVgaP/1

Online regex tester and debugger. Test, explain, benchmark, and generate code for PCRE2, JavaScript, Python, Go, Java, .NET, …