JSFiddle - React, Tailwind, and code Playground

JavaScript

function assert(expression) {
    alert(expression ? 'Yes' : 'No');
}

var obj = {
    "languages": {
        "New Zealand": "en_NZ",
            "b": 2,
        "c": 3
    }
};

var arr = [];

Ext.Object.each(obj.languages, function (key, value) {
    debugger;
    arr.push([key, value]);
});

assert(arr.length === 3);