In my Angular TypeScript code I have a function for formatting my value in this model:

1234 -> 1 234,000

First part of my function use regex like this:

 // delete 0 in string start and make 3 digits packets
    cleanedValue = cleanedValue.replace(/^0+(?=d)/, '').replace(/B(?=(d{3})+(?!d))/g, ' ');

It’s ok but Sonar give me a:

Make sure the regex used here, which is vulnerable to super-linear runtime due to backtracking, cannot lead to denial of service.

How can I do this without regex or without Sonar tell me this warning. Is this warning really positive?