lodash剔除嵌套数据无关字段和对象字段

[dpc761218914]

`var _ = require('lodash'); /*

• 减少传递给前端的数据字段。
• 例如这里，删除掉one、two、three、four以及对象数组中的age字段，
• 主要使用pick方法，对象数组需要使用递归处理
• */ let data={"classID":"123456", "className":"qinghua", "one":"one", "two":"two", "three":"three", "four":"four", "employees": [ { "firstName":"John" , "lastName":"Doe" , "age":"12" }, { "firstName":"Anna" , "lastName":"Smith" , "age":"13"}, { "firstName":"Peter" , "lastName":"Jones" , "age":"14"} ]};

//遍历，对象数组然后pick所需要的字段 .forEach(data.employees,function (value,index) {//若一个参数，返回的便是其value值 data.employees[index]=.pick(value, 'firstName', 'lastName'); // console.log(.pick(value, 'firstName', 'lastName'));//22 33 11 55 }); data=.pick(data, 'classID', 'className','employees'); //输出选择的结果 console.log(data);

/*打印的结果

• { classID: '123456', className: 'qinghua', employees: [ { firstName: 'John', lastName: 'Doe' }, { firstName: 'Anna', lastName: 'Smith' }, { firstName: 'Peter', lastName: 'Jones' } ]}
• */`