How to exclude some files and folders from coverage report?

Created by: NikitaLiashenko

I am trying to exclude some JS files from coverage report. I have already added this to package.json

"jest": {
    "testPathIgnorePatterns" : ["<rootDir>/node_modules/", "<rootDir>/path/to/dir/" ],
    "testResultsProcessor": "./node_modules/jest-junit-reporter"
  }

Unfortunately files from those dir still appear when I run CI=true npm test -- --coverage