How can you combine the functionalities of two Angular class components into a new third component class?

Question

How can you combine the functionalities of two Angular class components into a new third component class?

I am working on a project where I have two distinct component classes named Class Component A and Class Component B. My goal is to extend these classes in a new Class Component C.

Someone suggested that I could utilize Mixin in Angular typescript, but I am unsure about the process of implementing it in my component classes. Any guidance on achieving this functionality in Angular would be greatly appreciated.

I did some research and found an example mentioned on this site: https://stackblitz.com/edit/mixin-example

I also attempted to use applyMixins as shown below, but I was unable to successfully integrate it with my Class components.

class A {
    start() {
        console.log('Vehicle Started');
    }
}

class B {
    end() {
        console.log('Vehicle stopped');
    }
}


class C implements A, B {
    end(): void {
        throw new Error("Method not implemented.");
    }

    start(): void {
        throw new Error("Method not implemented.");
    }
}

applyMixins(C, [A, B])

angular typescript inheritance angular5 mixins

Answer 1

Answer №1

Why are you interested in doing this? Regardless, I found a solution that worked for me by wrapping the function applyMixins into its own file.

Check out my solution here

In short, I created a function called applyMixins that merges properties from multiple classes into one.

export function applyMixins(derivedCtor: any, baseCtors: any[]) {
    // Logic to merge classes goes here
}

In my component C, I implemented components A and B, and then called the applyMixins function in the constructor:

export class CComponent implements AComponent, BComponent {
    
    end(): void {
        throw new Error("Method not implemented.");
    }

    start(): void {
        throw new Error("Method not implemented.");
    }

    constructor() {
      applyMixins(CComponent,[AComponent,BComponent])
    }
}

Answer 2

Why are you interested in doing this? Regardless, I found a solution that worked for me by wrapping the function applyMixins into its own file.

Check out my solution here

In short, I created a function called applyMixins that merges properties from multiple classes into one.

export function applyMixins(derivedCtor: any, baseCtors: any[]) {
    // Logic to merge classes goes here
}

In my component C, I implemented components A and B, and then called the applyMixins function in the constructor:

export class CComponent implements AComponent, BComponent {
    
    end(): void {
        throw new Error("Method not implemented.");
    }

    start(): void {
        throw new Error("Method not implemented.");
    }

    constructor() {
      applyMixins(CComponent,[AComponent,BComponent])
    }
}

How can you combine the functionalities of two Angular class components into a new third component class?

Answer №1

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