Variables are one of the fundamental blocks of any programming language, the way each language defines how we declare and interact with variables can make or break a programming language. This ...

All JavaScript programming happens in an environment like a web browser, Node, or Bun.js. Each of these environments has its own set of pre-defined variables like window and console.

It's been a while since I worked on regexs in JavaScript, but generally the way you do this in most programming languages is to build the regex as a string and then pass it into the regex engine.