RegExp (Standard - JavaScript)
Represents a regular expression.
Defined in
Standard (JavaScript)Usage
A regular expression describes search criteria. Here are some sample expressions to give you the idea:Expression | Meaning |
---|---|
(Moscow) |
Matches Moscow . |
(Moscow)|(Tokyo) |
Matches Moscow or Tokyo . |
\s*;\s* |
Matches zero or more spaces followed by a semicolon followed by zero or more spaces. |
\s*;\s+ |
Matches zero or more spaces followed by a semicolon followed by one or more spaces. |
\w+ |
Matches one or more alphanumeric characters. |
Search the Web for "regular expression" to find comprehensive information.
Form a literal regular expression by delimiting
the expression with forward slashes, optionally followed by one or
both of the following:
g
for global and i
for
case insensitive. Here are examples:- All matches of
Moscow
./(Moscow)/g
- All matches of
moscow
case insensitive./(moscow)/gi
- First match of
moscow
case insensitive./(moscow)/i