I've seen it mentioned in docs, etc the vue.config.js file. And also noted previously these are handled in the webpack config file, etc in 2.0. But I can't find either file in my project folder created with vue cli 3.0... Where is the config files and why isn't it anywhere in the top level folders, etc?
Where is the config files and why isn't it anywhere in the top level folders, etc?
The initial project doesn't require the file to exist because you just created a project with fresh "default" settings that don't require any config.
Just create it yourself. it's even mentioned in the README:
Many aspects of a Vue CLI project can be configured by placing a vue.config.js file at the root of your project. The file may already exist depending on the features you selected when creating the project.
(emphasis mine)
Edit: now to be found here: https://cli.vuejs.org/config/#global-cli-config