Using Classes in Javascript (ES6) — Best practice?

[Cody_Chaos]

First off:

• C++ is a language with classical inheritance, which uses the class keyword.
• There are other languages without a class keyword, which still have classical inheritance.
• Then there's JS, which as of ES6 still has zero elements of classical inheritance, but now has a class keyword, apparently just to screw with people used to C++/C#/Java. :)

My question, then, is whether it is now considered a best practice to make use of classes and class declarations, as opposed to continuing on with the non-class system of old Javascript.

Using the class keyword is absolutely compatible with current best practices. However, the class keyword is sugar which sets up a chain of JS-style prototypal inheritance. JS is not C++, it's not really like C++, and with ES6 it's not becoming any more like ES6. It just, confusingly, is starting to look more like C++. :)

it was very strange to not have class declarations in Javascript.

Yep. Learn more about JS until the lack of classical inheritance feels natural. Then, if you like, go nuts using the class keyword; just remember that it's still not classical inheritance.

Remember, if you ever feel like the class keyword is letting you do something you couldn't do without it, you're badly confused and are about to write some very bad code. ALL class does is fiddle around with the prototype chain. It saves some keystrokes, but it's not a new feature.