![Interfaces Describe what classes should do, without specifying how they should do it Not a class, but a set of requirements for classes that want to conform. - ppt download Interfaces Describe what classes should do, without specifying how they should do it Not a class, but a set of requirements for classes that want to conform. - ppt download](https://images.slideplayer.com/31/9682965/slides/slide_6.jpg)
Interfaces Describe what classes should do, without specifying how they should do it Not a class, but a set of requirements for classes that want to conform. - ppt download
![Request: Allow abstract classes to implement MappedTypes that are instantiated with type parameters. · Issue #21326 · microsoft/TypeScript · GitHub Request: Allow abstract classes to implement MappedTypes that are instantiated with type parameters. · Issue #21326 · microsoft/TypeScript · GitHub](https://user-images.githubusercontent.com/4564579/35200678-584d8e62-fec7-11e7-85e1-19218cb3c36a.png)
Request: Allow abstract classes to implement MappedTypes that are instantiated with type parameters. · Issue #21326 · microsoft/TypeScript · GitHub
types/express/index.d.ts issue: An interface may only extend a class or another interface · Issue #21140 · DefinitelyTyped/DefinitelyTyped · GitHub
![Abstract Classes and Interfaces. Abstract methods You can declare an object without defining it: Person p; Similarly, you can declare a method without. - ppt download Abstract Classes and Interfaces. Abstract methods You can declare an object without defining it: Person p; Similarly, you can declare a method without. - ppt download](https://images.slideplayer.com/16/5230596/slides/slide_9.jpg)