:up_arrow_selector:一个升级Babel版本(到v7)的工具:' npx Babel upgrade ' Babel / Babel u

babel-upgrade A tool that tries to automatically update most dependencies, config files, and JavaScript files that require Babel packages directly to (and more in the future). Usage Requires nodejs 8 or newer Run at the root of your git repo: If using npm < v5.2.0, install globally. # npx lets