一、删除数组元素letarr=[{name:'黎明',id:21111},{name:'王小二',id:1111},{name:'size二',id:3222}]arr.splice(arr.findIndex(item=>item.id===3222),1)arr.filter(obj=>obj.id!==3222)二、删除object元素letarr={name:'Dawn',id:1111,age:24};方法一：constpersonUnkonwAge=(({name,id})=>({name,id}))(arr)console.log(personUnkonwAge)console.log(arr)方法二：让{name,...personUnknowName}=arrconsole.log(personUnknowName)
