npm test is an alias for npm run test. npm run adds ./node_modules/.bin to the path so you don't have to globally install commands. This is especially helpful for those of us who change node versions many times a day and would have to globally install in each of those versions.
npm testis an alias fornpm run test.npm runadds./node_modules/.binto the path so you don't have to globally install commands. This is especially helpful for those of us who change node versions many times a day and would have to globally install in each of those versions.