What is the purpose of creating typescript models from classes?

As a beginner in TypeScript, I am currently using it to develop Angular applications. I've noticed that some models are structured like this:

export interface Item {
    name: string
}

while others follow this pattern:

export class Lesson {

constructor(
    public $key:string)
}

They also include static methods such as:

static fromJson({$key}) {} 

What advantages does this approach offer?

Answer №1

Interface allows for the creation of a model with properties exclusively.

On the other hand, class provides the benefit of defining and utilizing functions as well.

For instance, when initializing an object, using an interface requires the initialization of all properties, whereas a class can achieve the same through the constructor.

The choice between the two ultimately lies with the user. In my perspective, employing a model with a class offers greater flexibility compared to using an interface.

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