Rewrite REGEX in IF statement

In below code I have REGEX.

This REGEX allows me to “filter-out” a specific type of “tags” I have.

For example… tag “Hello” is treated differently (in CSS styling) than tag “Ciao (IT)”.

This all works well, no problem there, all good.

 if(tag.name.match(/[a-zA-Z0-9]+\s*\([a-zA-Z0-9]+\)/)) {
      result.pop(
        '<a href="' + self.url_for(tag.path) + '" style="' + style + '">' +
        '</a>'
      );
    } else {
      result.push(
        '<a href="' + self.url_for(tag.path) + '" style="' + style + '">' +
        '</a>'
      );
    }

In another file I have “IF” statement…

if (page.tag)
  do something

In above statement I need to incorporate my REGEX also, and I tried something like this:

if (page.tag(/[a-zA-Z0-9]+\s*\([a-zA-Z0-9]+\)/))
  do something

But that does not work.

Question is how to incorporate REGEX in above statement that makes it work?

i think you are missing either ‘match’ or ‘test’ depending on whether you want the matched result or not.
You can look up both those functions for how to use them.