Node TypeScript delete require cache

Question

I want to re-require a module in TypeScript and Node multiple times for testing. According to this post that should work by using

const config = require('./foo');
delete require.cache[require.resolve('./foo')];

However, this does not work for me. Also, when I print out the object require.cache, it is empty.

Answer 1

I encountered the same problem in jest tests. What helped me is the resetModules call before test cases.