Regular expressions - JavaScript
Regular expressions are patterns used to match character combinations in strings. In JavaScript, regular expressions are also objects.
Regular expression
A regular expression sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text.
Alternation (OR) |
Alternation is the term in regular expression that is actually a simple “OR”. In a regular expression it is denoted with a vertical line character |.
Regular Expression Language - Quick Reference
In this article. A regular expression is a pattern that the regular expression engine attempts to match in input text. Character Classes · NET Regular Expressions · Character Escapes · Options
RegExr
Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.
Python RegEx
A RegEx, or Regular Expression, is a sequence of characters that forms a search pattern. RegEx can be used to check if a string contains the specified ... Python PIP · Try it Yourself · Try it
Regular Expression (Regex) Tutorial
Regular Expression, or regex or regexp in short, is extremely and amazingly powerful in searching and manipulating text strings, particularly in processing ...