If you are putting together a JavaScript package and you'd like to test it
out locally before putting it on NPM, use npm link.
First, from the directory of the package you are creating run:
$ npm linkThis will symlink the package to the global node modules directory.
Then, from the base project directory that you want to try importing and using the package from, run:
$ npm link name-of-packageThis will create an additional symlink from the global node modules
directory to the node_modules of this target project.
You'll now have access to the project, try an import to get what you need
and try it out.
See man npm-link for more details.