👀 Views: 14 💬 Answers: 1 📅 Created: 2025-06-19

regex javascript node.js JavaScript

I just started working with I'm getting frustrated with I'm learning this framework and I can't seem to get I'm upgrading from an older version and I've searched everywhere and can't find a clear answer. I've been banging my head against this for hours. I'm working with an scenario with a regex pattern in JavaScript where I need to capture nested parentheses. The goal is to extract the contents from expressions like `foo(bar(baz))` or `func(a, (b, c))`. I've tried using a pattern like `\(([^()]+|\(([^()]+|\([^()]*\))*\))*\)` but it doesn't seem to work correctly, especially with deeper nesting. Here's the code I've written so far: ```javascript const regex = /\(([^()]+|\(([^()]+|\([^()]*\))*\))*\)/g; const testString = 'foo(bar(baz), func(a, (b, c)))'; const matches = testString.match(regex); console.log(matches); ``` When I run this, I only get the first level of parentheses captured, which results in an output like `['(bar(baz)', '(a, (b, c))']`. I need to capture everything, including the nested parts. I've also tried using recursion in the regex but it seems that JavaScript doesn't support `(?R)` or similar constructs. I'm working with Node.js v14.17.6, and I’d appreciate any insights or alternative approaches to effectively handle nested structures. Thanks in advance! Thanks in advance! My development environment is Windows. This is happening in both development and production on Ubuntu 22.04. Is there a better approach? I recently upgraded to Javascript 3.9. Any suggestions would be helpful. Any help would be greatly appreciated!