This tutorial may help you:
https://community.skuid.com/t/how-to-use-a-javascript-snippet-as-a-static-resource

But basically:

1) in your JS static resource you need to register your snippet, essentially giving your snippet a name.

2) Add your static resource as a resource in your Skuid page

3) Call the snippet using actions (Run a Skuid Javascript Snippet) and use the name that you registered (it won’t be in the picker, but just type in the name.)

You can also check out our documentation at https://docs.skuid.com/latest/en/skuid/javascript/snippets/using-snippets-intro.html?#using-static-r…