exec (JavaScript)
Executes a search using a regular expression.
Defined in
RegExp (Standard - JavaScript)Syntax
exec(searchString:string) : string| Parameters | Description |
|---|---|
searchString |
The string to be searched. |
| Return value | Description |
|---|---|
string[] |
Substrings that match the regular expression, or null if the search fails. |
Usage
ThisRegExp object defines
the search criteria.Examples
This example returnsMoscow
- Moscow.var cities = new String("Paris Moscow Tokyo");
var regexp = /(Moscow)/;
var s = regexp.exec(cities);
if(s == null)
return "No match";
else
return s.join(" - ")