how to compare array of objects with arrays using javascript
I need to check array of objects based on conditons
if the targetvalue is same and code does not have value in arraylist return array of objects
else if the targetvalue is same and code same value in arraylist return array of objects
else return []
var arraylist =["IT","FI"];
var arrobj1 =[
{id:1, name: "sonu", code: "IT", targetvalue: "908"},
{id:2, name: "abi", code: "IT", targetvalue: "834"},
{id:3, name: "lisa", code: "SP", targetvalue: "834"},
{id:4, name: "ben", code: "FI", targetvalue: "234"},
]
Expected Output
//same value , and has "IT"
[]
****
var arrobj2 =[
{id:1, name: "sonu", code: "IT", targetvalue: "908"},
{id:2, name: "abi", code: "IT", targetvalue: "834"},
{id:3, name: "lisa", code: "SG", targetvalue: "234"},
{id:4, name: "ben", code: "SP", targetvalue: "234"},
]
Expected Output
//same targetvalue and no include of `FI or IT` so return
[
{id:3, name: "lisa", code: "SG", targetvalue: "234"},
{id:4, name: "ben", code: "SP", targetvalue: "234"},
]
****
var arrobj3 =[
{id:1, name: "sonu", code: "IT", targetvalue: "908"},
{id:3, name: "lisa", code: "FI", targetvalue: "234"},
{id:4, name: "ben", code: "FI", targetvalue: "234"},
]
Expected Output
// targetvalue and code same
[ {id:3, name: "lisa", code: "FI", targetvalue: "234"},
{id:4, name: "ben", code: "FI", targetvalue: "234"}]
I tried
const checkIdList = list => {
const idlist = ['IN', 'FI'];
const resultarray = list
.map((obj, i) => list.find((elem, index) => {
if (i !== index && elem.targetvalue === obj.targetvalue &&
(element.code === obj.code || idlist.includes(element.code)) {
return obj;
}
}))
.filter(x => x);
return resultarray;
};
var finalResult = this.checkIdList(arrobj1);
You can start by grouping the elements by targetValue and then filter the Object.values of the result by your three conditions:
function checkIdList(array, list) {
// group by targetValue
const grouped = {};
for (const o of array) {
(grouped[o.targetvalue] ??= []).push(o);
}
return Object.values(grouped)
.filter(g =>
g.length > 1 // subarrays of length > 1 indicate duplicates
&& (
g.every(({ code }) => !list.includes(code)) || // if every code is not in the list
g.every(({ code }, _, a) => code === a[0].code) // OR include if all codes are equal and included in list
))
.flat();
}
const arraylist = ["IT", "FI"];
const arrobj1 = [{ id: 1, name: "sonu", code: "IT", targetvalue: "908" }, { id: 2, name: "abi", code: "IT", targetvalue: "834" }, { id: 3, name: "lisa", code: "SP", targetvalue: "834" }, { id: 4, name: "ben", code: "FI", targetvalue: "234" },];
const arrobj2 = [{ id: 1, name: "sonu", code: "IT", targetvalue: "908" }, { id: 2, name: "abi", code: "IT", targetvalue: "834" }, { id: 3, name: "lisa", code: "SG", targetvalue: "234" }, { id: 4, name: "ben", code: "SP", targetvalue: "234" },];
const arrobj3 = [{ id: 1, name: "sonu", code: "IT", targetvalue: "908" }, { id: 3, name: "lisa", code: "FI", targetvalue: "234" }, { id: 4, name: "ben", code: "FI", targetvalue: "234" },];
console.log(checkIdList(arrobj1, arraylist));
console.log(checkIdList(arrobj2, arraylist));
console.log(checkIdList(arrobj3, arraylist));