1、map的用法
定义:原数组被“映射”成对应新数组
代码示例:
var users = [ {name: "张含韵", "email": "[email protected]"}, {name: "江一燕", "email": "[email protected]"}, {name: "李小璐", "email": "[email protected]"} ]; var emails = users.map(user=> { return user.email; });
2、filter的用法