JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

JavaScript

var obj = {"cool":"Mustang","family":"Station Wagon","small":{0:"small car 1",1:"small car 2"}}

var arr = Object.keys(obj).map(function (key) {
    return { [key]: obj[key] };
});

console.log(arr);