<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <script type="text/javascript"> // 作业1:实现一个函数，将现有数组内每个对象的checked属性去掉， let arr = [ {featureId: 1, featureContent: '全新未用', checked: '0'}, {featureId: 2, featureContent: '验货面付', checked: '0'}, {featureId: 3, featureContent: '快递包邮', checked: '0'}, {featureId: 4, featureContent: '保修期内', checked: '0'}, {featureId: 5, featureContent: '专柜正品', checked: '0'}, {featureId: 6, featureContent: '有发票', checked: '0'} ]; for(let i of arr){ let newVar =(({featureId,featureContent})=>({featureId,featureContent}))(i) console.log(newVar) } // 作业2:实现一个函数，传入一个array，返回去除了重复元素的新array。例如：[1,1,2,2,3,4,5,6,1,3,6,7] var mySet = new Set([1,1,2,2,3,4,5,6,1,3,6,7]); // console.log([...mySet]); function distinctarr(mySet){ var arr=new Set(mySet) return [...arr]; } console.log(distinctarr(mySet)); //作业3：实现一个函数，传入下列设对象，要求输出工资最高的人的姓名。 let emp = { "John": 100, "Pete": 300, "Mary": 250, "fuck": 400, "Jame": 450, "kobe": 550 } function maxEmp(emp) { let max = 0 let name for (let [key, val] of Object.entries(emp)) { if (val > max) { max = val name = key } } return name } console.log(maxEmp(emp)); </script> <body> </body> </html>
运行效果：
