After modifying the scripts stored in /assets/js/ ( disclaimer: not available as part of the default folder structure in Jekyll), I tried to rebuild using
npm run build:js, which failed. It threw an
errno 1 after
code ELIFECYCLE due to a failed uglify script.
To tackle it, I used the following commands:
npm cache clean --force rm -rf node_modules npm i
After these steps, I could run the command successfully.