I am currently trying to use reduce to merge objects together when objects contain the a specific value attached to the machineId key.
Beneath is the input:
var arr = [
{
"id":"4055",
"severity": "High",
"public": true,
"machineId": "48ed3",
"machineName": "powerb"
},
{
"id":"4045",
"severity": "High",
"public": true,
"machineId": "48ed3",
"machineName": "powerb"
},
{
"id":"3433",
"severity": "High",
"public": true,
"machineId": "43h5",
"machineName": "powerva"
}
]
Beneath is the expected output:
var output = [
{
machineId: "48ed3",
data: [
{
"id":"4055",
"severity": "High",
"public": true,
"machineId": "48ed3",
"machineName": "powerb"
},
{
"id":"4045",
"severity": "High",
"public": true,
"machineId": "48ed3",
"machineName": "powerb"
}
]
},
{
machineId: "43h5",
data: [
{
"id":"3433",
"severity": "High",
"public": true,
"machineId": "43h5",
"machineName": "powerva"
}
]
}
];
This is what I currently have as my solution:
const result = Array.from(new Set(cveId.map(s => s.machineId)))
.map(lab => {
return {
machineId: lab,
cveId: cveId.filter(s => s.machineId === lab).map(CVE => CVE.cveId)
}
})
console.log(result);
I've also tried creating an empty array and using !arr.contains() to push items into a new object but I'm struggling to get a working solution.
I'd appreciate any assistance with this.
Thanks.
You could take a functiion with data and key and map later the entries.
const
groupBy = (data, key) => Object
.entries(data.reduce((r, o) => ((r[o[key]] ??= []).push(o), r), {}))
.map(([k, data]) => ({ [key]: k, data})),
data = [{ id: "4055", severity: "High", public: true, machineId: "48ed3", machineName: "powerb" }, { id: "4045", severity: "High", public: true, machineId: "48ed3", machineName: "powerb" }, { id: "3433", severity: "High", public: true, machineId: "43h5", machineName: "powerva" }]
result = groupBy(data, 'machineId');
console.log(result);.as-console-wrapper { max-height: 100% !important; top: 0; }The initial grouping can be done using reduce. To get the final values array use Object.values on the reduce result
var arr = [ { "id":"4055", "severity": "High", "public": true, "machineId": "48ed3", "machineName": "powerb" }, { "id":"4045", "severity": "High", "public": true, "machineId": "48ed3", "machineName": "powerb" }, { "id":"3433", "severity": "High", "public": true, "machineId": "43h5", "machineName": "powerva" } ]
let res = Object.values(arr.reduce((acc,curr)=> {
acc[curr.machineId] = acc[curr.machineId] || {machineId:curr.machineId, data: []}
acc[curr.machineId].data.push(curr)
return acc
},{}))
console.log(res).as-console-wrapper { max-height: 100% !important; top: 0; }you can do this
const groupByKey = (data, key) => Object.values(
data.reduce((res, item) => {
const value = item[key]
const existing = res[value] || {[key]: value, data:[]}
return {
...res,
[value] : {
...existing,
data: [...existing.data, item]
}
}
}, {})
)
var arr = [
{
"id":"4055",
"severity": "High",
"public": true,
"machineId": "48ed3",
"machineName": "powerb"
},
{
"id":"4045",
"severity": "High",
"public": true,
"machineId": "48ed3",
"machineName": "powerb"
},
{
"id":"3433",
"severity": "High",
"public": true,
"machineId": "43h5",
"machineName": "powerva"
}
]
console.log(groupByKey(arr, 'machineId'))