DEV Community

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.

Posts

๐Ÿ‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
Finding Characters at Positions in Text | Regular Expressions for the Absolute Beginner

Finding Characters at Positions in Text | Regular Expressions for the Absolute Beginner

Comments
1 min read
Matching literal Strings | Regular expressions for The Absolute Beginner

Matching literal Strings | Regular expressions for The Absolute Beginner

Comments
1 min read
How to use PostgreSQLยฎ SUBSTRING

How to use PostgreSQLยฎ SUBSTRING

1
Comments
4 min read
๐—ช๐—ต๐—ฎ๐˜ ๐—ฎ๐—ฟ๐—ฒ ๐˜๐—ต๐—ฒ ๐—ฅ๐—ฒ๐—ด๐—˜๐˜… ๐—ฃ๐—ฎ๐˜๐˜๐—ฒ๐—ฟ๐—ป๐˜€?

๐—ช๐—ต๐—ฎ๐˜ ๐—ฎ๐—ฟ๐—ฒ ๐˜๐—ต๐—ฒ ๐—ฅ๐—ฒ๐—ด๐—˜๐˜… ๐—ฃ๐—ฎ๐˜๐˜๐—ฒ๐—ฟ๐—ป๐˜€?

1
Comments 1
2 min read
๐—›๐—ผ๐˜„ ๐˜๐—ผ ๐˜‚๐˜€๐—ฒ ๐—ฅ๐—ฒ๐—ด๐—˜๐˜… ๐—ถ๐—ป ๐——๐—ฎ๐—ฟ๐˜?

๐—›๐—ผ๐˜„ ๐˜๐—ผ ๐˜‚๐˜€๐—ฒ ๐—ฅ๐—ฒ๐—ด๐—˜๐˜… ๐—ถ๐—ป ๐——๐—ฎ๐—ฟ๐˜?

3
Comments
1 min read
Applying regular expressions โ€“ matching single-letter words in text

Applying regular expressions โ€“ matching single-letter words in text

Comments
7 min read
Regex in JS Explained

Regex in JS Explained

5
Comments 1
4 min read
Transform Class React Components to Functional

Transform Class React Components to Functional

1
Comments
2 min read
Regex is not your enemy

Regex is not your enemy

32
Comments 6
7 min read
Regular Expressions in Python

Regular Expressions in Python

5
Comments
3 min read
RegEX: Anchors

RegEX: Anchors

Comments 1
1 min read
Cooking Up Data Perfection in Power Apps: Bob's Burgers Style

Cooking Up Data Perfection in Power Apps: Bob's Burgers Style

8
Comments
3 min read
RegEx in Js

RegEx in Js

2
Comments
6 min read
Control verb in RegEX

Control verb in RegEX

Comments
1 min read
Mastering Regular Expressions (Regex): A Beginner's Guide

Mastering Regular Expressions (Regex): A Beginner's Guide

14
Comments
3 min read
TIL: Today I learned Regular Expressions (Regexp)

TIL: Today I learned Regular Expressions (Regexp)

1
Comments 3
1 min read
Top 10 Most Used Regex Patterns

Top 10 Most Used Regex Patterns

1
Comments
5 min read
Yet Another PostgreSQL-REGEX Article ๐Ÿคบ

Yet Another PostgreSQL-REGEX Article ๐Ÿคบ

6
Comments
4 min read
RegEx cheat sheet for JavaScript

RegEx cheat sheet for JavaScript

25
Comments
2 min read
Using a tagged template to simplify Regular Expressions

Using a tagged template to simplify Regular Expressions

Comments
12 min read
Provide Vite with the ability to conditionally compile directives

Provide Vite with the ability to conditionally compile directives

1
Comments
3 min read
Learn Regex

Learn Regex

Comments
10 min read
Regex Cheatsheet

Regex Cheatsheet

Comments
2 min read
Using Regular Expressions (RegEx) for Validations in Rails

Using Regular Expressions (RegEx) for Validations in Rails

6
Comments
4 min read
Best regexp alternative for Go. Benchmarks. Plots.

Best regexp alternative for Go. Benchmarks. Plots.

3
Comments
11 min read
Parsing SemVer in Javascript with the official RegEx

Parsing SemVer in Javascript with the official RegEx

4
Comments
1 min read
Batch rename BigQuery tables with SQL

Batch rename BigQuery tables with SQL

1
Comments
3 min read
๐Ÿ”ฃย 5 Best Platforms to Learn and Practise Regex

๐Ÿ”ฃย 5 Best Platforms to Learn and Practise Regex

5
Comments
6 min read
Introduction and History of Regular Expression

Introduction and History of Regular Expression

4
Comments 3
3 min read
Aperfeiรงoe suas habilidades em manipulaรงรฃo de texto com Expressรตes Regulares (Regex) e Replace em Python

Aperfeiรงoe suas habilidades em manipulaรงรฃo de texto com Expressรตes Regulares (Regex) e Replace em Python

Comments
5 min read
Desvendando a Sintaxe das Expressรตes Regulares em Python: Um Guia Completo

Desvendando a Sintaxe das Expressรตes Regulares em Python: Um Guia Completo

2
Comments
4 min read
Username and Password Validation Using Regex

Username and Password Validation Using Regex

24
Comments 2
4 min read
Regular expressions and string manipulation in Python

Regular expressions and string manipulation in Python

8
Comments 2
3 min read
RegExp based HTML modification in PHP

RegExp based HTML modification in PHP

1
Comments
2 min read
Unleashing the Power of JavaScript in Bubble.io Backend Workflows: A Case Study

Unleashing the Power of JavaScript in Bubble.io Backend Workflows: A Case Study

14
Comments
4 min read
A Quick Guide to Regular Expressions in Python

A Quick Guide to Regular Expressions in Python

3
Comments
3 min read
O que sรฃo Lookahead e Lookbehind em Expressรตes regulares

O que sรฃo Lookahead e Lookbehind em Expressรตes regulares

13
Comments 1
7 min read
Eliminate the Monotony: Automation with sed.

Eliminate the Monotony: Automation with sed.

4
Comments
3 min read
convert old('d') to $model->d in Laravel using regular expressions (RegEx)

convert old('d') to $model->d in Laravel using regular expressions (RegEx)

Comments
2 min read
Introduction to Regular Expressions in Python

Introduction to Regular Expressions in Python

Comments
3 min read
Thinking in Regular Expressions

Thinking in Regular Expressions

6
Comments
5 min read
A Beginner's Guide to Regular Expressions in Ruby

A Beginner's Guide to Regular Expressions in Ruby

1
Comments
4 min read
Regular Expressions for Beginners ๐Ÿ’ก

Regular Expressions for Beginners ๐Ÿ’ก

1
Comments
6 min read
Capture Groups in Regular Expressions

Capture Groups in Regular Expressions

Comments
10 min read
Advanced Regex Techniques to Spice Up Your Text Processing

Advanced Regex Techniques to Spice Up Your Text Processing

Comments
2 min read
How to Regex in Javascript

How to Regex in Javascript

14
Comments
5 min read
Regular Expressions aka REGEX crash course

Regular Expressions aka REGEX crash course

6
Comments 3
4 min read
Enhancing User Input Validation: Ensuring Proper Decimal Formatting with Regular Expressions

Enhancing User Input Validation: Ensuring Proper Decimal Formatting with Regular Expressions

1
Comments
1 min read
Golang: Regex

Golang: Regex

3
Comments
17 min read
Acronym exercise: splitting strings like a pro

Acronym exercise: splitting strings like a pro

1
Comments
3 min read
Building an AI RegEx Editor with Retool, OpenAI, and CodeMirror

Building an AI RegEx Editor with Retool, OpenAI, and CodeMirror

2
Comments
6 min read
How to write Regex without writing regex ๐Ÿฆ„

How to write Regex without writing regex ๐Ÿฆ„

3
Comments
3 min read
Web Scraping With RegEx

Web Scraping With RegEx

1
Comments 1
18 min read
What is Regex? JavaScript regular expressions in 5 minutes

What is Regex? JavaScript regular expressions in 5 minutes

1
Comments
6 min read
JavaScript Regex guide for for beginners.

JavaScript Regex guide for for beginners.

1
Comments
3 min read
How to use Regex with Python

How to use Regex with Python

Comments
3 min read
Regular Expressionsโ€”a Rite of Passage: Completing the Application

Regular Expressionsโ€”a Rite of Passage: Completing the Application

Comments
10 min read
URL REGEX

URL REGEX

4
Comments
11 min read
Learn the Basics of RegEx in JavaScript

Learn the Basics of RegEx in JavaScript

7
Comments 3
6 min read
When JavaScript regex can surprise you - a silly bug story

When JavaScript regex can surprise you - a silly bug story

Comments
3 min read
loading...