js操作两个数组，记笔记

const res = [{name:"张三",age:"18",btn:"正常"},{name:"李四",age:"20",btn:"正常1"},{name:"赵六",age:"25",btn:"正常2"}]

const arr = []

 res.forEach(item => {
        arr.push({
          name : item.name,
         age :item.age
        })

            });

打印结果：