如何使用map / filter / reduce组合两个数组？ [英] How to combine two arrays using map/filter/reduce?

问题描述

我有两个对象阵列：员工和公司。

I have two arrays of objects: employees and companies.

var employees= [{
    name: 'XYZ',
    empId: 0,
    age: 29,
    compId: 1
}, {
    name: 'ABC',
    empId: 1,
    age: 26,
    compId: 2
}, {
    name: 'EFG',
    empId: 2,
    age: 28,
    compId: 1
}, {
    name: 'MNO',
    empId: 3,
    age: 32,
    compId: 3
}];

var companies = [{
    name: 'Facebook',
    id: 1
}, {
    name: 'Amazon',
    id: 2
}, {
    name: 'Google',
    id: 3
}];

通过使用基于这些数组的map / filter / reduce，我必须打印输出喜欢



32岁的员工'MNO'正在谷歌工作



这两个阵列有共同点是'employees.compId = companies.id'。



请帮助我如何关联这两个数组并打印上面的输出字符串。

By using map/filter/reduce based on these arrays, I have to print a output like

"Employee 'MNO' of Age 32 is working in Google"

These two arrays have in common is 'employees.compId = companies.id'.

Please help me how to relate these two arrays and print the above output string.

推荐答案

这里讨论你的问题 - 是否有某种方式我可以加入两个javascript数组的内容就像我会加入SQL一样 [ ^ ]。

Your question is discussed here - Is there some way I can "join" the contents of two javascript arrays much like I would do a join in SQL[^].

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