React Native is very slow when creating a new project, you can do this:
First download an AwesomeProject source code (without dependencies), then npm install install dependencies
npm uses taobao dependencies
npm config set registry https://registry.npm.taobao.org
npm config set disturl https://npm.taobao.org/dist
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react - native init AwesomeProject // very slow
cd AwesomeProject
react-native run-ios
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