Question

I would like to extract the text within () brackets. The string looks like this: It is within the

Some text: 5 (some numbers) + some more numbers
asdfkjhsd: 7 (6578) + 57842
djksbcuejk: 4 (421) + 354

My javascript looks like this:

var fspno = document.getElementsByTagName("td")[142].innerText;
var allfsp = fspno.match();

I want this script to collect all numbers within the brackets in an array. I used

fspno.match(/\((.*?)\)/g);

but it returned with the brackets. I want only the text inside the brackets.
Any help would be appreciated. Thanks.

Answer 1

There’s no way in javascript to extract all matches with all groups at once, therefore you either have to use exec in a loop:

re = /\((.+?)\)/g
found = []
while(r = re.exec(fspno))
    found.push(r[1])

or abuse String.replace to collect the matches:

re = /\((.+?)\)/g
found = []
fspno.replace(re, function($0, $1) { found.push($1)})

In your particular case, however, it’s possible to rewrite the expression so that it doesn’t contain groups and can be used with String.match:

re = /[^()]+(?=\))/g
found = fspno.match(re)