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Regular Expressions

A regular expression (shortened as regex or regexp also referred to as regular expression) is a sequence of characters that specifies a search pattern.

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25+ useful and commonly used Regular Expressions

25+ useful and commonly used Regular Expressions

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7 min read
TIL: Postgresql's SUBSTRING function

TIL: Postgresql's SUBSTRING function

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1 min read
Why You Shouldn't Paste Private Logs Into Cloud Regex Testers 🔍

Why You Shouldn't Paste Private Logs Into Cloud Regex Testers 🔍

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2 min read
I Built a Real-Time Regex Tester in the Browser (Capture Groups, Flags, No Libraries)

I Built a Real-Time Regex Tester in the Browser (Capture Groups, Flags, No Libraries)

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2 min read
Python Regular Expressions: The Definitive Guide

Python Regular Expressions: The Definitive Guide

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4 min read
Stop Copy-Pasting Regex You Don't Understand: 5 Patterns Explained

Stop Copy-Pasting Regex You Don't Understand: 5 Patterns Explained

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3 min read
Why Your Regex Works in Testing But Breaks in Production

Why Your Regex Works in Testing But Breaks in Production

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6 min read
How to Design an Effective Referral Reward System: A Complete Technical Guide for SaaS

How to Design an Effective Referral Reward System: A Complete Technical Guide for SaaS

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9 min read
5 Regex Patterns That Will Save You Hours of Debugging

5 Regex Patterns That Will Save You Hours of Debugging

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2 min read
A Click-to-Build Regex Builder in 500 Lines of Vanilla JS — Token Model and Live Highlight Internals

A Click-to-Build Regex Builder in 500 Lines of Vanilla JS — Token Model and Live Highlight Internals

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5 min read
Why Our Android Build Was Signed with the Wrong Key (A Regex Cautionary Tale)

Why Our Android Build Was Signed with the Wrong Key (A Regex Cautionary Tale)

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4 min read
My 4-Step Regex Debugging Workflow (That Actually Saves Time)

My 4-Step Regex Debugging Workflow (That Actually Saves Time)

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2 min read
grep: An Hour at Bell Labs in 1973

grep: An Hour at Bell Labs in 1973

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7 min read
I built a Kotlin DSL because I couldn't read my own regex anymore

I built a Kotlin DSL because I couldn't read my own regex anymore

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3 min read
A regex cheatsheet of the patterns I actually use weekly

A regex cheatsheet of the patterns I actually use weekly

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2 min read
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