'Mocha hook for each test and test file

Is it possible to add a hook in mocha 8.1 for each test and test file?

Ex: I want to set a startup delay before each each in all the test files

mocha.js

Solution 1:^[1]

export const mochaHooks = {
  beforeEach(done) {
    // do something before every test
    done();
  }
};

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Solution	Source
Solution 1	Adi Oz