// this one to call external APIs
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
I would HIGHLY recommend using fetch
over axios
unless you need interceptors. You are loading another 16kb of data which does the same thing as a fetch but without needing to grab that 16kb.
Also if you are going to use axios, lock it to a specific version rather than using the latest, you never know when a breaking change is going to come around and break stuff.