將obj中的id和name字段替換分別替換成爲「@id」,「@name」spa
代碼以下:code
let obj = [{id:1,name:"張三"},{id:2,name:"李四"}].map(function (item) { return{ "@id":item.id, "@name":item.name } })
對於對象對象
let obj = { id:1, name:"張三", age:20, grade:{ Math :90, English :80 } }
例如:替換obj中grade屬性,將Math替換Chinese,將English替換成Chemistryblog
完整代碼爲:
ip
let obj = { id:1, name:"張三", age:20, grade:{ Math :90, English :80 } } obj.grade["Chinese"] = obj.grade.Math; obj.grade["Chemistry"] = obj.grade.English; delete obj.grade.Math; delete obj.grade.English; console.log(obj); //{ id: 1,name: '張三',age: 20,grade: { Chinese: 90, Chemistry: 80 } }