JavaScript RegExp exec() Method

exec()This method is used to search for matches in the specified string.

If a match is found, this method returns the matched text; otherwise, it returns null.

Syntax:

regex.exec(string)

Example

var str = "www.oldtoolbag.com";
var regex = new RegExp("h");
var ans = regex.exec(str);

All browsers fully support the exec() method:

Method
exec()	Yes	Yes	Yes	Yes	Yes

Parameter	Description
string	String that matches the regular expression

Return Value:	If a match is found, an array containing the matched text is returned; otherwise, null is returned.
JavaScript Version:	ECMAScript 1