workaround for negative lookbehind regular expression in Javascript

[Ehsan sarshar]

/\B(?

[Richard Deeming]

Use a decent browser; it's only Internet Explorer and Safari that don't support lookbehind assertions. Regular expressions - JavaScript | MDN[^] Assertions - JavaScript | MDN[^] https://javascript.info/regexp-lookahead-lookbehind[^]

---

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

[Pete OHanlon]

The commonest way that people solve this for browsers that don't support this is to think in reverse. In other words, you reverse the string and the regular expression so that all you end up testing is the negative regular expression, rather than a lookbehind. This[^] is a great resource.

Advanced TypeScript Programming Projects