Get value from regexp

Question

how could I get value from regexp?

var str = '<tag>VALUE</tag>'; // VALUE

This question is vague. How fixed is that input? Will it always be the same tag, and exactly one tag? You could just use basic string operations for that. — Lightness Races in Orbit, Mar 02 '11 at 14:43
Why would you even want to use regular expressions for this? Unless you're keeping something from us? — Grant Thomas, Mar 02 '11 at 14:44
Must be a homework assignment. This is almost identical to another question this morning. http://stackoverflow.com/questions/5168885/regex-c-problem-with-matching — BJ Safdie, Mar 02 '11 at 14:45

score 3 · Accepted Answer · answered Mar 02 '11 at 14:44

3

If your string is really that simple, you could simply get rid of the tags:

var str = '<tag>VALUE</tag>';

str = str.replace(/<tag>|<\/tag>/g,'');

If it is actually more complex or variable, then a regex may not be the way to go.

answered Mar 02 '11 at 14:44

user113716

kelloti · Answer 2 · 2011-03-02T14:58:42.650

2

use groups:

var m = /<[^>]+>([^<]*)<\/[^>]+>/.exec('<tag>VALUE</tag>');
var s = m[1]

edited Mar 02 '11 at 14:58

answered Mar 02 '11 at 14:46

kelloti

score 0 · Answer 3 · answered Mar 02 '11 at 15:14

0

Matching anything between > and <

"(?<=\>)(.*?)(?=\<)"

answered Mar 02 '11 at 15:14

Peter Kelly

3 Answers3