File extension validator should look for extensions at the end of filename only

[alexxxnf]

Hello!

Thank you for this nice directive.

I think file extension validator works incorrectly when in builds regexp from string or array. Regexp matches extensions anywhere in the file name. For example validator .txt considers the following value as valid readme.txt.bak.

I think the correct regexp should be like this: /.(?:\.txt|\.text)$/i.

[jwelker110]

Thank you for taking the time to provide some feedback and highlight an inconsistency in the code and documentation!

You are correct, and I will adjust the handling of the Regex so that it matches against the end of the extension.

[jwelker110]

This is fixed in version 1.0.13 (Angular 4 / 5) and 2.0.2 (Angular 6).