no-useless-escape: '\..' in a RegExp is useless?

[RobDesideri]

Hi, this is the regex:

let r = new RegExp(`.*/${assetFilename}\..*$`)

This is the warning:

The \.. pattern is intended as a literal dot . followed by a 'any single character' .

Why this warning?

[RobDesideri]

Ok, I understood my error.

The template literals requires the same escape treatment as normal js strings (ref).
And, this behavior not change also if string (or template literal) is passed as a RegExp argument (ref).

So, the correct pattern is:

let r = new RegExp(`.*\\/${assetFilename}\\..*$`)

This is why standard emit the error.
Hope this can be useful for others.