Regular expressions are patterns used to match character combinations in strings. In JavaScript, regular expressions are also objects. Regular expressions · Character classes · Assertions · RegExp.prototype.test()
A regular expression sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Regular language · Comparison of regular... · Perl Compatible Regular...
In this article. A regular expression is a pattern that the regular expression engine attempts to match in input text. NET Regular Expressions · Character Classes · Character Escapes · Options
