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minor fixes

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Ilya Kantor 2020-07-02 14:24:52 +03:00
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1-js/09-classes/02-class-inheritance/article.md
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@ -230,7 +230,9 @@ let rabbit = new Rabbit("White Rabbit", 10); // Error: this is not defined.
Whoops! We've got an error. Now we can't create rabbits. What went wrong?
The short answer is: constructors in inheriting classes must call `super(...)`, and (!) do it before using `this`.
The short answer is:
- **Constructors in inheriting classes must call `super(...)`, and (!) do it before using `this`.**
...But why? What's going on here? Indeed, the requirement seems strange.