Gleb

In static method declarations "this" points to the class constructor (added to summary)

Overriding class fields added to summary

grammatical error

1

an object "user" -> the object "user"

Clarification regarding "hasInstance" method

Setting __proto__ of an existing object to null also works.

Fixing a misstype now: let result = /* calculations of the result for */ obj; change to: let result = /* calculations of the result for obj */;

Typo let result = /* calculate the result for */ obj; => let result = /* calculate the result for obj */;