[Beta] Using the structuredClone() for updating a nested object

https://beta.reactjs.org/learn/updating-objects-in-state#updating-a-nested-object

I think that deep cloning object with structuredClone() and putting the clone into setPerson() is better solution for the problem than using the spread operator.

The the example that was provided can easily be changed this way:

personCopy = structuredClone(person);
personCopy.artwork.city = "New Delhi";
setPerson(personCopy);

This can help avoiding the mistake when spread operator is used to deep clone objects. See example below:

const original = { a: { b: 1 } };
const falseCopy = { ...original };

falseCopy.a.b = 2;

console.log(falseCopy); // logs {a: {b: 2}}
console.log(original); // also logs {a: {b: 2}}

I am sorry if I have failed to follow contributing guidelines. I am aware that the second example is not the best representation of my point.

Comece pela seção vinculada da documentação do React, “Updating a nested object”, e revise o exemplo atual com o operador spread em conjunto com a proposta de structuredClone(). O trabalho estará concluído quando a seção apresentar claramente a abordagem de atualização escolhida e evitar induzir os leitores ao erro sobre a diferença entre cópia superficial e cópia profunda.