JSFiddle - React, Tailwind, and code Playground

JavaScript

AvGen = {

    theBody: {
        bodies: [
            1,
            2,
            3
        ],
        bodyColor: '#DB6EDB',
        currBodyNr: 1,
        get currBodyObj() {
           return AvGen.theBody.bodies[AvGen.theBody.currBodyNr];
        }
    }
}
       
console.log(AvGen.theBody.currBodyObj);