动态合并数组对象

Question

我想组合两个具有共同属性的数组(排名和匹配(：

var ranking = [{
def: "0.58",
league: "Scottish Premiership",
name: "Celtic",
off: "3.33",
grank: "3",
tform: "96.33",
},
{
def: "2.52",
league: "Scottish Premiership",
name: "Dundee",
off: "1.28",
grank: "302",
tform: "27.51",
}]
var matches = [{
date: "2010-04-22",
league: "Scottish Premiership",
home: "0.0676",
away: "0.8",
draw: "0.1324",
goals1: "3",
goals2: "1",
tform1: "96.33",
tform2: "27.51",
team1: "Celtic",
team2: "Dundee",}]

预期输出如下：

[{
date: "2010-04-22",
league: "Scottish Premiership",
home: "0.0676",
away: "0.8",
draw: "0.1324",
goals1: "3",
goals2: "1",
tform1: "96.33",
tform2: "27.51",
def1: "0.58",
def2: "2.52",
off1: "3.33",
off2: "1.28",
grank1: "3",
grank2: "302",
team1: "Celtic",
team2: "Dundee",}]

为了合并数组，我使用了Lodash_.merge函数

var result = _.merge(ranking, matches);

它返回的输出确实合并了一些对象并省略了同类对象。

在完成这项任务时，我需要一些帮助和见解。我不介意任何javascript(客户端(解决方案。

Answer 1

您需要根据给定的数据进行合并，并添加两个团队的信息。

const
keys = ['def', 'off', 'grank'],
getRanking = (team, suffix) => Object
.fromEntries(keys.map(k => [k + suffix, team[k]])),
ranking = [{ def: "0.58", league: "Scottish Premiership", name: "Celtic", off: "3.33", grank: "3", tform: "96.33" }, { def: "2.52", league: "Scottish Premiership", name: "Dundee", off: "1.28", grank: "302", tform: "27.51" }],
matches = [{ date: "2010-04-22", league: "Scottish Premiership", home: "0.0676", away: "0.8", draw: "0.1324", goals1: "3", goals2: "1", tform1: "96.33", tform2: "27.51", team1: "Celtic", team2: "Dundee" }],
teams = Object.fromEntries(ranking.map(o => [o.name, o])),
result = matches.map(o => ({
...o,
...getRanking(teams[o.team1], 1),
...getRanking(teams[o.team2], 2)
}));
console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }