Calling a method using variables to specify the method call signature

Technical Questions
1

Typescript question:
I have this code:

this.options = this.apexDesignerBusinessObjectsService.{{this.businessObjectName}}.validValues;

That syntax isn’t right, but gets across what I’m trying to do.
Is there a way to do this in Typescript?

2

The double curly braces syntax is valid in the template of a UI but not in TypeScript.

To use a property (this.businessObjectName) vs a literal, you would do this:

this.options = this.apexDesignerBusinessObjectsService[this.businessObjectName].validValues;