function deepClone(obj) {

    if (obj === null || typeof obj !== 'object') {

        return obj;

    }

​

    const clone = Array.isArray(obj) ? [] : {};

​

    for (let key in obj) {

        if (obj.hasOwnProperty(key)) {

            clone[key] = deepClone(obj[key]);

        }

    }

​

    return clone;

}

​

var n = {foo: 'bar', hello: [{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'}]};

​

while (n.length < 1000) {

    n = deepClone(n);

}

var n = {foo: 'bar', hello: [{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'}]};

while(n.length < 1000) {

    n = JSON.parse(JSON.stringify(n))

}

var n = {foo: 'bar', hello: [{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'},{hello: 'world', foo: 'bar'}]};

while(n.length < 1000) {

    n = Object.assign({}, n);

}

​