jestjs - How can I clear the Jest cache?

Question

Jest is picking up an old version of a package and thus my tests fail unless I use --no-cache. I can even delete the package folder from folder node_modules and Jest is happy to run the tests (almost all are passing).

So how do I clear the Jest cache?

Answer 1

As of Jest 22.0.0+, you can use the --clearCache option:

Deletes the Jest cache directory and then exits without running tests. Will delete cacheDirectory if the option is passed, or Jest's default cache directory.