Regular Expressions 101

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Community Patterns

-3

Number

ECMAScript (JavaScript)
Gets all numbers in a string. This includes positive and negative numbers aswell as integers and floats. By: http://www.benlorantfy.com/
Submitted by Ben - 10 years ago
-3

Detect a numeric string

ECMAScript (JavaScript)
no description available
Submitted by Ankur Chauhan - 10 years ago
-3

Strict email validation

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
-3

remove facebook urls from html

ECMAScript (JavaScript)
This will remove all facebook urls from a HTML string
Submitted by Russell Miller - 9 years ago
-3

Html Tags

ECMAScript (JavaScript)
Matches HTML structure
Submitted by sagar - 9 years ago
-3

matching words between tags

ECMAScript (JavaScript)
matching words between square brachets tags include newline or carriage return
Submitted by anonymous - 9 years ago
-2

non-negative integer

ECMAScript (JavaScript)
repeat ... refactor
Submitted by jay johnson - 11 years ago
-2

email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 11 years ago
-2

Select ID from regex101 URL

ECMAScript (JavaScript)
no description available
Submitted by Vinay - 11 years ago
-2

Regex to select text withing square brackets.

ECMAScript (JavaScript)
no description available
Submitted by Dhrubajyoti Gogoi - 10 years ago
-2

Header `Link` validator

ECMAScript (JavaScript)
no description available
Submitted by Vaseker - 10 years ago
-2

Matching HTML attributes

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
-2

Regex for 1 to 100 with or without decimal values

ECMAScript (JavaScript)
no description available
Submitted by Ved - 10 years ago
-2

valid windows file name

ECMAScript (JavaScript)
no description available
Submitted by Mitacha - 10 years ago
-2

Decimal Number

ECMAScript (JavaScript)
Parse decimal numbers with optional thousands and/or decimal separator. #i18n #l11n #international
Submitted by Andreas Pizsa - 10 years ago
-2

I need some one to generate an regexp please

ECMAScript (JavaScript)
I need regular expression for the string WC_AUTHENTICATION_1343459084. Here WC_AUTHENTICATION_ remains fixed and the number keeps changing. I have written the below logic. var re = new RegExp('[; ]'+"WC_PERSISTENT"+'[0-9]'); Please help
Submitted by Sanuvimal.Mohan@target.com - 10 years ago
-2

Comma-separated numbers with ranges

ECMAScript (JavaScript)
no description available
Submitted by Eugene - 10 years ago
-2

S3 log analysis

ECMAScript (JavaScript)
An updated S3 log analyzer. I found that my logs sometimes had strings quoted, so I needed to add possible handling for that.
Submitted by Matt Ingenthron <ingenthr@cep.net> - 10 years ago
-2

Username

ECMAScript (JavaScript)
^[_a-zA-Z0-9]+$ how to make regex username with underscore. i'm using c# but this regex isn't working.
Submitted by anonymous - 10 years ago
-2

Match website - http:|https://i.imgur.com

ECMAScript (JavaScript)
no description available
Submitted by ghrifter - 10 years ago
123...172

Community Library Entry

0

Regular Expression
.NET 7.0 (C#)

@"
^[a-zA-Z0-9@\-\.]*$
"
gm
Open regex in editor

Description

Matches alphanumeric, @, . , -

Submitted by Ethan Pedersen - 2 years ago