Having trouble with typed.js plug-in

Hello -

Can someone please assist with getting the typed.js plug in to work? I am having trouble running it. My code is below. I have added the external javascript https://cdnjs.cloudflare.com/ajax/libs/typed.js/1.1.4/typed.min.js in addition to bootstrap and jquery.

Have not used typed.js before, but you might play around with this codepen project:

Interestingly enough, the author is using two external js files for typed.min.js; and the function does not work without either of them.

I would like to use this in the future, so let me know how this goes!