This is because ES6 modules need to do static code analysis while CommonJS doesn't support this. Once this is done, all files under this folder will be loaded as ES6 modules. mjs, package.json file needs to be updated to set type to module. If don't want to change the file extension to.

mjs file, it will load it as ES6 modules and will enable strict mode by default. mjs, i.e, if the file uses import or export inside, it should have. To be loaded in NodeJS, ES6 module files should have file extension. However, import is asynchronous, to be precise it has a static code analysis and dependency resolution phase which indicates internally it would not be sequential. Merchanismwise require() is doing sequential loading, other statements must wait for this statement to complete before executing. ES6 modules are loaded and exported using import and export respectively. CommonJS modules are loaded with require() and exported with module.exports.

The syntax of the module being loaded is different.

This post will show how this can be done. Many people would wonder how to load ES6 modules in their NodeJS project. These two types of module are not compatible. In modern JavaScript, there are two types of modules: ES6 module and CommonJS module used by NodeJS.

Nodejs es6