Regular Expressions 101

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Community Patterns

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Community Library Entry

Regular Expression
ECMAScript (JavaScript)

^(?:https?:\/\/)?([-\w.]+\.[\w]+){1}(\/[\/\d\w\.\-\?\+\&\#\=\~]*)?$

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Description

This regex is used to extract a domain name (including subdomains) and the full URI from a URL. will not match when credentials are provided in the url.

Submitted by anonymous - 2 years ago

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Community Patterns

Match Safe Filename

Match URL Path with Optional Query Params

Validate Credit Card Expiration Date

Match Email with Domain Validation

Extract Phone Number with Extension

Email with Optional Subdomain

Non-Greedy Match

Currency Amount

XML Attribute

Match Credit Card Number with Optional Spaces

Match Valid Domain Name

Match a credit card number with optional dashes or spaces

Match Non-Digit Characters

Match Specific File Extensions (e.g., .jpg, .png)

Match Username with Special Characters

Match HTML Tags with Attributes

Match Credit Card Numbers (Visa, MasterCard)

Match Decimal Numbers with Thousand Separator

Match Times in 12-Hour Format (HH AM/PM)

Match US ZIP Code with Optional Extension

Community Library Entry

Regular ExpressionECMAScript (JavaScript)

Description

Regular Expression
ECMAScript (JavaScript)