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The fastest way to get feedback from code changes is to run the app in HMR mode with:
vue-cli-service serve
That’s normally only used in development though. Could you explain further what you’re changing in production and why you’re waiting for it to rebuild in production? Are you perhaps building an app from a set of user-selected components and you want the fastest build time possible to demo the app to the user?
Source:stackexchange.com