How to insert Objects in object into variable

I have an objects inside parent object. Can I create an object in which there are these objects?

let a = {
  "11111": {"1": "test", "11": "test"},
  "22222": {"2": "test", "22": "test"}
} 

Expected output:

{
  "1": "test", 
  "11": "test",
  "2": "test", 
  "22": "test",
}

>Solution :

Just reduce the object values by spreading them onto a new object.

const
  a = {
    "11111": { "1": "test", "11": "test" },
    "22222": { "2": "test", "22": "test" }
  },
  b = Object.values(a).reduce((acc, obj) => ({ ...acc, ...obj }), {});
  
console.log(b);

If you want to be efficient, you can call Object.assign instead:

const
  a = {
    "11111": { "1": "test", "11": "test" },
    "22222": { "2": "test", "22": "test" }
  },
  b = Object.values(a).reduce((acc, obj) => Object.assign(acc, obj), {});
  
console.log(b);