hidden={true}

为什么不直接用 proxy 呐？

interface Resource<T> {
  uid: number;
  resouceName: string;
  data: T;
}



const docThree: Resource<object> = {
  uid: 2,
  resouceName: "person",
  data: { name: "hello" },
};

如果想给 docThree.data 设置必须包干 age 属性应该怎么操作？

还是没明白 useCallback 具体使用场景

export default function BlogList({ blogs, title='All Blogs'}) {
    return (
        <div className="blog-list">
            <h2>{title}</h2>
            {blogs.map((blog) => (
                <div className='blog-preview' key={blog.id}>
                    <h2>{blog.title}</h2>
                    <p>Written by {blog.author}</p>
                </div>
            ))}
        </div>
    )
}

这样写是不是和 defaultProps 一样？

const EventEmitter = require('events');
class MyEmitter extends EventEmitter {}

const fun1= new MyEmitter();
const fun2= new MyEmitter();
const fun3= new MyEmitter();

let arr = [fun1,fun2,fun3];
arr.forEach((item)=>{
item.on('event', msg => {
console.log(msg);
});
})
fun1.emit('event','fun1');
fun2.emit('event','fun2');
fun3.emit('event','fun3');