get, or set value nested objects.

nestedObjectAccessor.ts

// ref: https://stackoverflow.com/questions/6906108/in-javascript-how-can-i-dynamically-get-a-nested-property-of-an-object
export function getValue<T>(obj: T, path: string): T {
  if (!path) return obj;
  const properties = path.split(".");
  return getValue(obj[properties.shift()], properties.join("."));
}

// ref: https://stackoverflow.com/questions/18936915/dynamically-set-property-of-nested-object
export function setValue<T>(obj: T, path: string, value: Pick<T, keyof T>): T {
  const pList = path.split(".");
  const key = pList.pop();
  const pointer = pList.reduce((accumulator, currentValue) => {
    if (accumulator[currentValue] === undefined) accumulator[currentValue] = {};
    return accumulator[currentValue];
  }, obj);
  pointer[key] = value;
  return obj;
}