Javascript regex to detect CSV file type?

Question

There seems to be a lot of questions asking for regex to detect a CSV file type, but none for javascript.

Given that a regular expression for images looks like /^image\/(gif|jpeg|png)$/, does anyone know what the same would look like for CSV?

Edit To be a little more clear, looking for both a "how-to" to regex check if file is a CSV and the common extensions associated. Thanks!

Answer 1

The CSV file extension is typically .csv. So try matching against that:

.+(\.csv)$