Struggling with storing information in a variable of type index

I devised a couple of interfaces to structure my data, as illustrated below:

export interface BindingItem{ [property:string] : BehaviorSubject<string>; }

export interface BindingObject{ [library:string] : BindingItem; }

Within my service file, I have a variable of type BindingObject, and I am attempting to populate it using the following function:

private createBindingData(library:string, property:string, setting:string){
    this.BindingData[library][property]= new BehaviorSubject(setting);
}

An error message in the console suggests that the value passed in as the property argument cannot be assigned to undefined with respect to the library argument entered.

The targeted variable is initialized as an empty object like so:

private BindingData: BindingObject = {};

What is the correct approach for setting data in an object structured in this way?

Answer №1

A recent discovery I made was the necessity to initialize the library by declaring it as an empty object before assigning properties in this manner

private initiateLibrary(library: string){
    this.DataBinder[library] = {};
}

private establishPropertyBinding(library: string, property: string, value: string){
    this.DataBinder[library][property] = new BehaviorSubject(value);
}

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