What this snippet does
Mixins allow composing classes from reusable components by extending a base class within a function, merging their features.
Expected output
true
Why practise typing this
Typing advanced classes & oop code builds muscle memory for the symbols and indentation TypeScript uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More TypeScript practice
- Adding a log method via mixinAdvanced Classes & OOP · advanced
- Mixins losing type information of base classAdvanced Classes & OOP · advanced
- Typing a function that accepts an abstract classAdvanced Classes & OOP · advanced
- Mixin factory accepting abstract base classesAdvanced Classes & OOP · advanced
- Directly instantiating an abstract constructor typeAdvanced Classes & OOP · advanced
- Returning the current class instance typeAdvanced Classes & OOP · advanced