Convert a dictionary into an array keeping the dictionary keys

Question

I'm trying to find a more elegant way of converting a dictionary of dictionaries to an array of dictionaries and keeping the information of the keys of the original dictionary.

In the case of

let data= { boss: { name:"Peter", phone:"123"},
            minion: { name:"Bob", phone:"456"},
            slave: { name:"Pat", phone: "789"} 
          }

I want to come up with something that gives me

output = [ { role:"boss", name:"Peter", phone:"123"},
           { role:"minion", name:"Bob", phone:"456"},
           { role:"slave", name:"Pat",  phone:"789"}
         ]

My solution goes by using the Object.keys method, but I think it's not very efficient. Something tells me I'm going the complex-all-around way and there must be an easier path, but I can't get it:

 Object.keys(data)
                .map((elem, i) => {
                    return Object.assign({role: e}, Object.values(data)[i]);
                })

Is this the cleanest way to do what I intend to?

Thanks

Answer 1

You could map the entries and pick the key/role for a new object.

let data = { boss: { name: "Peter", phone: "123" }, minion: { name: "Bob", phone: "456" }, slave: { name: "Pat", phone: "789" } },
    result = Object.entries(data).map(([role, values]) => ({ role, ...values }));

console.log(result);

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