Object flatten in JS

Flatten.js

const getAllKeys = (obj) => {
  const result = [];
  const queue = [{ path: [], obj }];

  while (queue.length) {
    const { path, obj: currentObj } = queue.shift();
    for (const [key, value] of Object.entries(currentObj)) {
      const newPath = path.concat(key);
      if (typeof value === 'object' && value !== null) {
        queue.push({ path: newPath, obj: value });
      }
      result.push(newPath.join('.'));
    }
  }

  console.log(result);
  return result;
}

const obj = {
  a: 1,
  b: {
    c: 4,
    d: {
      e: 6,
      f: {
        g: 10
      }
    }
  }
};

getAllKeys(obj);
//[ 'a', 'b', 'b.c', 'b.d', 'b.d.e', 'b.d.f', 'b.d.f.g' ]