Regular Expressions 101

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Community Patterns

1

<input type="datetime-local" /> pattern

ECMAScript (JavaScript)
As 'datetime-local' input doesn't have a [pattern] attribute, you can check its value with this RegExp. Does not check if the given day corresponds to its month . Ex : 2019-02-30 will be considered as correct
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
1

<input type="week" /> pattern

ECMAScript (JavaScript)
As 'week' input doesn't have a [pattern] attribute, you can check its value with this RegExp. Does not check if the given year has 52 or 53 weeks.
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
1

<input type="time" /> pattern

ECMAScript (JavaScript)
As 'time' input doesn't have a [pattern] attribute, you can check its value with this RegExp. You must provide hours and minutes. Seconds and milliseconds are optional. To "activate" seconds on the input, give it the step="" attribute with a number reprensenting the incrementation in seconds....
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
0

Italian phone number regex

PCRE (PHP <7.3)
Italian phone number reg
Submitted by Ali Babayev - 3 years ago
0

PCRE2 ipv6

PCRE2 (PHP >=7.3)
Some cases of ipv6 at string begin
Submitted by anonymous - 3 years ago
0

LinkedIn School Username

PCRE2 (PHP >=7.3)
x
Submitted by anonymous - 3 years ago
1

Worlde helper

PCRE2 (PHP >=7.3)
simple, just adjust that: contains letters "l z n" (probably can be simplified but I dont know how) exlude anywhere "rtuasgc" dictionary taken from wordle JS file
Submitted by anonymous - 3 years ago
0

Yandex music track regex

Python
Regex for yandex music track
Submitted by anonymous - 3 years ago
0

提取src

PCRE2 (PHP >=7.3)
提取src
Submitted by anonymous - 3 years ago
0

Hitech RTOZONE

Java 8
Checks the registration number's validity
Submitted by Sid - 3 years ago
0

Last 4 charecters

PCRE2 (PHP >=7.3)
This regex allows you to access the last 4 charecters in a string and manipulate them however you want
Submitted by anonymous - 3 years ago
0

Find two matching group

Python
Find two matching groups
Submitted by anonymous - 3 years ago
0

java-test1

Java 8
java test string
Submitted by anonymous - 3 years ago
0

Danish CPR number validation

PCRE (PHP <7.3)
CPR number is presented with or without a dash
Submitted by anonymous - 3 years ago
1

Numbers only (including decimals) ( JS work fine)

ECMAScript (JavaScript)
Rejects first symbol if 0 and all other non number (doesn't includes .123 )
Submitted by Sofitt - 3 years ago (Last modified 3 years ago)
0

quote

PCRE2 (PHP >=7.3)
quote text
Submitted by anonymous - 3 years ago
0

HTML TAG Match

PCRE2 (PHP >=7.3)
Match a html tag.
Submitted by Fernando Gaston Olivera Alaniz - 3 years ago
1

CSV quotation mark

PCRE2 (PHP >=7.3)
See quotes that are not delimiters
Submitted by anonymous - 3 years ago (Last modified 3 years ago)
1

No trailing spaces or extra spaces max char 200 min 2 and hyphen and & only allowed

PCRE (PHP <7.3)
No trailing spaces or extra spaces max char 200 min 2 and hyphen and & only allowed
Submitted by Natalia zolotareva - 3 years ago
2

Currency with dollar sign, two decimals, negative allowed, starting with period ok

ECMAScript (JavaScript)
Currency with dollar sign, two decimals, negative allowed, starting with period ok
Submitted by Natalia Zolotareva - 3 years ago
1...165166167168169...901

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
^(0\d|1\d|2[0-4]):(0\d|[1-5]\d)(?::(0\d|[1-5]\d))?(?:.(00\d|0[1-9]\d|[1-9]\d{2}))?$
/
gm
Open regex in editor

Description

As 'time' input doesn't have a [pattern] attribute, you can check its value with this RegExp.

You must provide hours and minutes. Seconds and milliseconds are optional.

To "activate" seconds on the input, give it the step="" attribute with a number reprensenting the incrementation in seconds.

To "activate" milliseconds on the input, set the step attribute to "0.001"

Submitted by Ann MB - 3 years ago (Last modified 3 years ago)