Node JS module classification

Core module require (' FS ');

Core modules are compiled into binary code

File module require ('.. /fs.js ');

There is no point when loading the module. //.../, the search path of the module is loaded. If ‘/home/ry/projects/foo.js‘ the file in is called require (' bar.js '), node will search in the following location:

/home/ry/projects/node_modules/bar.js/home/ry/node_modules/bar.js/home/node_modules/bar.js/node_modules/ Bar.js

Folder module require ('.. /fs ');

If there is no Package.json file under this directory, node will attempt to load the Index.js or Index.node file from this directory. For example, if there is no Package.json file above, then require ('./some-library ') will attempt to load the following file:

./some-library/fs.js ./some-library/fs.node

Node JS module classification