Javascript equivalent of Perl's \Q … \E or quotemeta()

Question

In Perl regular expressions, you can surround a subexpression with \\Q and \\E to indicate that you want that subexpression to be matched as a lite

Answer 1

There is no such built-in feature.

Rather than implementing your own, I advise you look into the multitude of regex escape functions available on the internet.

That page proposes the following solution (by Colin Snover):

RegExp.escape = function(text) {
    return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
}

or advises to use the XRegExp library.