Applies To: RegExp Object
The $1...$9 properties returns the nine most-recently memorized portions found during pattern matching. Read-only.
Syntax
RegExp.$n
The n argument is a number between 1 and 9.
Return value
Returns the nine most-recently memorized portions found during pattern matching
Remarks
The value of the $1...$9 properties is modified whenever a successful parenthesized match is made. Any number of parenthesized substrings may be specified in a regular expression pattern, but only the nine most recent can be stored.
The following example illustrates the use of the $1...$9 properties:
function matchDemo()
{
var s;
var re = new RegExp("d(b+)(d)","ig");
var str = "cdbBdbsbdbdz";
var arr = re.exec(str);
s = "$1 contains: " + RegExp.$1 + "<BR>";
s += "$2 contains: " + RegExp.$2 + "<BR>";
s += "$3 contains: " + RegExp.$3;
return(s);
}
document.write(matchDemo());
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See Also: RegExp Object Properties, Regular Expression Syntax |
