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Install flow type definitions from Jest by default or suggest it

See original GitHub issue

I think the suggested flow config should also include the following line:

[libs]
/flow-typed/

So that flow will recognize the definitions if you run:

flow-typed install jest -f 0.30

It would be helpful to add some info in the README about this process of adding type definitions to the project. Maybe the type definition of Jest could actually be added by default?

Issue Analytics

State:
Created 7 years ago
Comments:8 (4 by maintainers)

Top GitHub Comments

3reactions

jeffmocommented, Aug 16, 2016

There’s no need for config here (I’ve never felt so proud!) – <PROJECT_ROOT>/flow-typed is already a default [libs] dir in Flow.

So as long as that directory exists, any .js files in it are considered libdefs even without a [libs] section in the .flowconfig.

3reactions

jamiebuildscommented, Aug 16, 2016

The Flow team has plans for a flow-typed install command that will automatically install libdefs for all of your dependencies and stub the ones that do not have libdefs. So this workflow will be improved in the future not just for Jest but for everything.

In the meantime it might make sense for create-react-app to ship with a [lib] directory with all of the dependencies that create-react-app adds by default. Then can be added to a .flowconfig fairly easily.

cc @jeffmo

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