Question

I want to find /AA/ pattern in AA-AA-AA subject string. I need to get the matching string and the position (index) of the match.

I have looked at RegExp.prototype.exec(). It only returns the first match:

/AA/g.exec('AA-AA-AA')

Answer 1

exec() only returns a single match. To get all matches with a g​lobal regexp, you have to call it repeatedly, eg.:

var match, indexes= [];
while (match= r.exec(value))
    indexes.push([match.index, match.index+match[0].length]);