JSFiddle - React, Tailwind, and code Playground

JavaScript

var yourObj =  {
    objA: {
        objA: {
            v1: "a"
        }
    },
    objB: {
        objA: {
            v1: "b",
            v2: "c",
        }
    }
}

yourObj.objB.objA.v1 = yourObj.objA.objA.v1;
alert(yourObj.objB.objA.v1);