Exports = module. Exports

This articleArticleWell explained: http://timnew.github.io/blog/2012/04/20/exports_vs_module_exports_in_node_js/

To put it simply, exports is just a common variable generated by the module system, and the so-called module system is the module object itself, but create does not mean it is an attribute, so the module. exports! = Exports. To make exports equal to module. Exports, you must assign a value manually. var exports = module. Exports. This leads to the common syntax we see in others' modules:

Exports = module. Exports = {}

The above link clearly shows the process of interpreting each sentence from the official documents of node. js.