RegEx to get text from inside the square brackets [duplicate]

Answer 1

A single lookahead should do the trick here:

 a = "this is [test] line i [want] text [inside] square [brackets]"
 words = a.match(/[^[\]]+(?=])/g)

but in a general case, exec or replace-based loops lead to simpler code:

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