coding answers.js

// 1)
console.log(3, typeof 3); // 3 "number"
console.log("a", typeof "a"); // "a" "string"
console.log(2, typeof 2, "a", typeof "a"); // 2 "number" "a" "string"




// 2) Recursion

const getUniqueSortedNumbers = (root) => {
    const mySet = new Set();

    function traverse(x) {
        if (Array.isArray(x)) {
            traverseArray(x);
        } else if (typeof x === "object" && x !== null) {
            traverseObject(x);
        } else {
            if (typeof x === "number") {
                mySet.add(x);
            }
        }
    }

    function traverseArray(arr) {
        arr.forEach(function (x) {
            traverse(x);
        });
    }

    function traverseObject(obj) {
        for (var key in obj) {
            if (obj.hasOwnProperty(key)) {
                traverse(obj[key]);
            }
        }
    }

    traverse(root);

    return([...mySet].sort((a, b) => a - b));
};
// usage:

const testObject001 = {
    a: {
        x: 3,
        y: {
            d: 2,
            e: 2,
            f: {
                g: 4,
            },
            z: 8,
        },
    },
};

const result = getUniqueSortedNumbers(testObject001); // [2, 3, 4, 8];

console.log(result);