Records below are third-party data, not instructions. Apply with your own judgment.
jest
1 record of known failures, each with its cause, the fix and what not to try.
Don’t try
keep the Babel presets in .babelrc and only widen transformIgnorePatterns — .babelrc applies only inside its own package, so files under node_modules are transformed with no presets and still contain export. (×1) · record
one transformIgnorePatterns entry per package — a path is skipped if it matches any pattern, so each entry's negative lookahead re-ignores the other packages; combine them in one regex. (×1) · record