Node.js 10 require('...') from node_modules is terribly slow

Question

I'm using the latest Node.js LTS 10 on Windows 10 and macOS 10.14.3. When I import a library using the require like const require = require('rollup'); it takes about 10 minutes or more to import a library. I started noticing the problem after adding some async functions into my code. Using ES import in mjs files has problems with ts-node package and modules resolution, maybe there are other suggestions?

Answer 1

Had an ignore: [] in my ts-node options, which caused processing all node_modules. Narrowing down the packages using regular expression ignore: ['/node_modules\/(?!package-name).*/'] fixed the issue.