ES6 is now widely supported

[zeezephyr]

https://caniuse.com/?search=es6

Perhaps these (and other) references to ES6 should be updated?

fullstack-hy2020.github.io/src/content/7/en/part7d.md

Line 15 in e89fe16

We have implemented our applications by dividing our code into separate modules that have been <i>imported</i> to places that require them. Even though ES6 modules are defined in the ECMAScript standard, the older browsers do not know how to handle code that is divided into modules.

fullstack-hy2020.github.io/src/content/7/en/part7d.md

Line 371 in e89fe16

As mentioned in part 1, most browsers do not support the latest features that were introduced in ES6 and ES7, and for this reason, the code is usually transpiled to a version of JavaScript that implements the ES5 standard.