[英]Immutablejs - Update Values in nested Map and List
我有這個 immutableJs 地圖:
event: {
days: [
{
date: 1,
sessions: [
{
id: 1,
name: 2,
startTime: 1,
endTime: 1,
description: 1,
detailsLink: 1,
details: {visible: true}
},
{
id: 2,
name: 2,
startTime: 2,
endTime: 2,
description: 2,
detailsLink: 2,
details: {visible: false}
},
{
id: 3,
name: 3,
startTime: 3,
endTime: 3,
description: 3,
detailsLink: 3,
details: {visible: true}
}
]
},
{
date: 2,
sessions: [
{
id: 1,
name: 2,
startTime: 1,
endTime: 1,
description: 1,
detailsLink: 1,
details: {visible: false}
},
{
id: 2,
name: 2,
startTime: 2,
endTime: 2,
description: 2,
detailsLink: 2,
details: {visible: false}
},
{
id: 3,
name: 3,
startTime: 3,
endTime: 3,
description: 3,
detailsLink: 3,
details: {visible: true}
}
]
}
]
}
我想更新那些可見的:真到可見:假。 我用過濾器、序列等嘗試了很多不同的方法。但沒有運氣。
關於如何使用 immutableJs 做到這一點的任何想法?
遲到的人,但是這個怎么樣(假設你的數據在一個名為data
的變量中):
data.setIn(["event", "days"],
data.getIn(["event", "days"]).map(day =>
day.set("sessions", day.get("sessions").map(session =>
session.setIn(['details', 'visible'], false)))
)
)
在 ES6 中,它可能可以很容易地轉換為 immutableJS....
const notVisibleEvents = {
...events,
days: events.days.map(d => {
return {
...d,
sessions: d.sessions.map(s => {
return {
...s,
details: {
...s.details,
visible: false
}
};
})
};
})
};
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