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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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Automating OTP Verification in Playwright Without Writing a Single Regex

Automating OTP Verification in Playwright Without Writing a Single Regex

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5 min read
CSS Box Model Visualizer, Meta Tag Checker, Regex Highlighter — 3 New Tools

CSS Box Model Visualizer, Meta Tag Checker, Regex Highlighter — 3 New Tools

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1 min read
AI Writes My Code, But It Can't Read Its Own Output

AI Writes My Code, But It Can't Read Its Own Output

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6 min read
How to Use Regex in JavaScript: A Complete Developer Guide

How to Use Regex in JavaScript: A Complete Developer Guide

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4 min read
Regex Cheat Sheet with Examples: The Complete 2026 Reference

Regex Cheat Sheet with Examples: The Complete 2026 Reference

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1 min read
From 100x Slower Than Rust to Beating It: The coregex Journey

From 100x Slower Than Rust to Beating It: The coregex Journey

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11 min read
10 Regex Patterns Every Developer Should Know (With Live Examples)

10 Regex Patterns Every Developer Should Know (With Live Examples)

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3 min read
I built a regex tester that tells you what your pattern actually does

I built a regex tester that tells you what your pattern actually does

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4 min read
Stop Googling Regex — Use AI Instead

Stop Googling Regex — Use AI Instead

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1 min read
Improving Go's Regex Performance: Addressing Slow Log Parsing and Template Processing in Real-World Benchmarks

Improving Go's Regex Performance: Addressing Slow Log Parsing and Template Processing in Real-World Benchmarks

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13 min read
Cursor Just Made ripgrep Look Slow. Here's How.

Cursor Just Made ripgrep Look Slow. Here's How.

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4 min read
Your Java Regex Just Silently Broke in Production. Here's How to Make That Impossible.

Your Java Regex Just Silently Broke in Production. Here's How to Make That Impossible.

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4 min read
How to Debug a Regex Pattern Without Losing Your Mind

How to Debug a Regex Pattern Without Losing Your Mind

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2 min read
AI Regex Generator: Build Accurate Patterns from Plain English in Seconds

AI Regex Generator: Build Accurate Patterns from Plain English in Seconds

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5 min read
I Wrote 82 Regex Replacements to Parse 6,933 Time Format Variations From a Government Dataset

I Wrote 82 Regex Replacements to Parse 6,933 Time Format Variations From a Government Dataset

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6 min read
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