A quick walk throught the fresh ES6 modules spec coupled with the front MVC framework EmberJS.
The ES.current as we know it doesn’t feature a standardized module system, you cannot require some fragment of code inside another fragment of code and use it while being inside a namespace (and not a global). AMD and CommonJS came along and proposed two impressive yet incompatible solutions to let developers use modules (AMD is mostly used in the browser, while CommonJS is more used server-side). The new ES6 modules spec aims at solving this module problem and also let ES6 modules transpile to both AMD and CommonJS as a polyfill.
The ES6 modules spec is done and will not change before the ES6 specs release, we can now use it and feel safe about the new semantic we learn.