js-regex | chainable API for constructing RegExps | Regex library

Because of lack of browser support, I need to change 2 lookbehind RegExp to something else.

I have these 2 patterns which includes a lookbehind:

1. matches the pattern '(anything not a ')': (ie. 'abcdef':) if it is not at the beginning of the string or preceded by a ,

   ...

I have the following regex set up to accept words and some special characters:

I'm trying to make a script that I use in Chrome work for safari. It uses a lookbehind regex to skip a page, but Safari doesn't support that. It recognises the amazon ASIN and puts together a link.

I have implemented this regex for matching a string for validation purposes: ^(?[a-zA-Z0-9]{0,3})(?:(?[a-zA-Z]{1,2})(?(?<=^.{5})[a-zA-Z0-9]*)?)?

I'm using highlight.js to automatically highlight code in a

I am trying to parse txt files with js + regex and my problem is as follows:

I'm trying to match the following markdown text for emphasis:

I'm attempting to validate a Bootstrap 4.4 form field. I don't just want to verify that this field is populated, I also want to verify that it's populated with a URL. This can be an internal URL, a hostname or an IP address, however it should be entered as http://XXXXXX or https://XXXXXX, and must not be just XXXXX.com. My current code (last section of this post) does not validate the form correctly.

I have a string.replace() function that uses a regex lookbehind.