Regular Expressions 101

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Community Patterns

14

us postal/zip

ECMAScript (JavaScript)
no description available
Submitted by jay johnson - 11 years ago
13

US Currency Format

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
24

grab valid css rules and properties

ECMAScript (JavaScript)
no description available
Submitted by Pavel Dominguez - 9 years ago
14

Email regex validation

ECMAScript (JavaScript)
RegEx email /^((?!\.)[\w-_.]*)(@\w+)(\.\w+(\.\w+)?)$/gim; Just playing with Reg Ex. This to validate emails in following ways ...
Submitted by https://www.linkedin.com/in/peralta-steve-atileon/ - 6 years ago (Last modified a year ago)
7

IP Address (with 0s)

ECMAScript (JavaScript)
Matches all valid IP addresses from 0.0.0.0 to 255.255.255.255
Submitted by Ryan Plummer - 9 years ago
18

Email (RFC2822)

Recommended
ECMAScript (JavaScript)
Email address compliant with RFC2822
Submitted by Jago - 9 years ago
11

youtube url match

ECMAScript (JavaScript)
extract video id, index, play list id from youtube url
Submitted by anonymous - 9 years ago
11

CSS Color Matcher

ECMAScript (JavaScript)
Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/
Submitted by Kyza - a year ago
33

Strict Password Validator

ECMAScript (JavaScript)
This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number...
Submitted by qho - 7 years ago (Last modified a year ago)
1...170171172

Community Library Entry

-1

Regular Expression
ECMAScript (JavaScript)

/
(?<=(?:^|[^\\])(?:\\\\)*)(([`'"])(.*?(?:[^\\](\\\\)*|$)(\2|$)))
/
g
Open regex in editor

Description

匹配带引号内容，被引号包含的内容

结构($x)

((前引号)(内容)(后引号))

  1. 整体内容(包含引号)
  2. 前引号
  3. 内容
  4. 后引号
  • 默认匹配[`'"]引号，可以在表达式的匹配2中更改
  • 消除转义字符对引号的影响
  • 单个有效引号会直接匹配至末尾，若不想匹配至末尾可以移除表达式尾部的$
Submitted by 诶!你的尾巴掉了 - a year ago (Last modified a year ago)