.mjs


Node.js's native module system was CommonJs.
It has experimental support for the standard ES6 module system and using a .mjs file extension is part of one way to trigger that support.
14에서는 공존


> [What is the difference between .js and .mjs files?](https://stackoverflow.com/questions/57492546/what-is-the-difference-between-js-and-mjs-files)




