题解 | #监听对象#
监听对象
https://www.nowcoder.com/practice/2cd8f8421e9b42b98152f56ef5e0ac79
Object.keys(person).forEach(prop => {
Object.defineProperty(person, prop, {
get() {
return oldValue
},
set(value) {
person[prop] = value
_render(ul)
}
})
});
