Compare nested objects with arrays in JavaScript and return keys equality

var obj1 = { prop1: 1, prop2: "foo", prop3: [{ number: 1, prop4: "foo", prop5: "a" }, { number: 2, prop4: "foo", prop5: "b" }] }var obj2 = { prop1: 3, prop2: "foo", prop3: [{ number: 1, prop4: "bar", prop5: "b" }, { number: 2, prop4: "foo", prop5: "a" }, { number: 3, prop4: "foo", prop5: "e" }], prop6: "new" }const isObject = v => v !== null && typeof v == "object";function getDifference(x, y = x) {    if (x === undefined) x = y;    if (Array.isArray(x) && Array.isArray(y)) {        const temp = [];        for (let i = 0; i < (x.length + y.length) / 2; i++)            temp.push(getDifference(x[i], y[i]))        return temp;    }    if (isObject(x) && isObject(y)) {        const temp = {};        for (const key of new Set([...Object.keys(x), ...Object.keys(y)]))            temp[key] = getDifference(x[key], y[key])        return temp;    }    return x === y;}console.log(getDifference(obj1, obj2));