Regular Expressions 101

Grab a first name from a full name string

Parse CSS Selector in the form element#id.class into its components. Any of the three elements can be missing.

Adds german special characters äöüß to the default HTML5 regex

(204)555-5555 (204)-(555)-(5555) 204-555-5555 To: 2045555555

phone regex

will match ^/teacher//list$ ^/teacher//file/$ ^/teacher//info/$ ...

Finds all website URLs

asdasd

Matches everything but digits and allows for one decimal point. cannot start with a negative Allowed: 123...

(/^\d{0,}(([.]{1})?\d?){0,}$/gi

div change to button

Capture details of file sizes and names from a ls listing from WinSCP

Regex match markdown link

Detect internal links in page

显示分组

Match Base64 data stream inside CSS file (WOFF/WOFF2)

It checks for time in 24hr format with colon separator

extract id in filename psd from path ftp

This is the complete Sign-In with Ethereum RegExp implementation

using this regular expression you can implement usa number validation.