Asynchronous Extension List

Write a program called asyncListExt.js that prints a list of files in a given directory, filtered by the extension of the files. The first argument will be the path to the directory we want to filter on (e.g. /path/to/dir/) and a file extension to filter by as the second argument. For example, if you get .txt as the second argument then you will need to filter the list to only files that end with .txt

Below are some example runs:

An example run would be: node asyncListExt.js . .js

Another example run would be: node asyncListExt.js /Users/joshua/Desktop .docx