老师，关于依赖是数组和对象的时候我有一些疑问

Answer 1

提问者 qq_沧海桑田_2 2021-05-29 13:05:16

const [tagId, setTagId] = useState([4, 5]);

const [params, setParams] = useState({ name: "javk" });

const handleClick = () => {

const diffId = [];

[4, 5].forEach((element) => {

if (tagId.includes(element)) {

diffId.push(element);

}

});

setTagId(diffId);

setParams({ name: "javk" });

};

useEffect(() => {

console.log("params changed");

}, [params]);

useEffect(() => {

console.log("tagId changed");

}, [tagId]);

如何做到，当值相同，引用不同的时候，useEffect中的东西不打印呢