JS function that accepts an array of masks and returns whether it is a string or a number [closed]

I am interested in writing a js function which receives as input an array of masks and determines whether it is match for numbers only or a string.

Example :

Input:

[/[C-Xc-x]/, ' ']

Output:

String

Input:

[/d/, /d/, ' ']

Output:

Numbers

I tried to write several functions that would do this but I didn’t succeed.