Does include exclude everything not listed in the array/pattern?

[chopfitzroy]

I was looking at #323 and want to do something similar, my current solution is:

babel({
    extensions: ['.js', '.mjs', '.html', '.svelte'],
    include: ['src/**', 'node_modules/svelte/**']
})

My question is does this explicitly exclude all other node_modules?

[Andarist]

My question is does this explicitly exclude all other node_modules?

Yes, if you specify include pattern then by nature only those files are included which means that everything else is excluded.