Li Hau's Notes

[2019-04-22] materials for flow article

a(y); // @flow a(y);

https://babeljs.io/repl#?babili=false&browsers=&build=&builtIns=false&spec=false&loose=false&code_lz=IYHgHgfAFAnglAbgFAHoUAIACAzANgewHclRJZEg&debug=false&forceAllTransforms=false&shippedProposals=false&circleciRepo=&evaluate=false&fileSize=false&timeTravel=false&sourceType=module&lineWrap=true&presets=es2015%2Cflow%2Cenv&prettier=false&targets=&version=7.4.3&externalPlugins=%40babel%2Fplugin-syntax-flow%407.2.0