i have following Code which is working fine `
someVar.getNftsByCollections(['abcs']).then((obj) => {
obj.filter(nft => nft.sold === true)
.map(nft => console.log(nft))
});
})`
and its consol me the data like this
{ name: "Common Pass"
owner: "abc1"
placeholderNft: false
position: 1509
price: 1000}
Now i have 100 of objects like that which is am consoling but now i want to find duplicates owners count so how can i extend my code .In simple words e.g. there are other records with same owner abc1 like around 12 so how can i achieve this
var dublicates = {}
someVar.getNftsByCollections(['abcs']).then((obj) => {
obj.filter(nft => {
dublicates[nft.owner] = dublicates[nft.owner] ? dublicates[nft.owner] + 1 : dublicates[nft.owner]
return(nft.sold === true)
})
.map(nft => console.log(nft))
});
})
actural_dublicate =Object.keys(dublicates).filter(key => dublicates[key] > 1)
You can use a reduce to iterate over this array and generate a count in the format.
{ owner: 'abc1', count: 12 }
With that you'll have:
someVar.getNftsByCollections(['abcs']).then((obj) => {
.filter((nft) => nft.sold)
.reduce((accObj, nft) => {
const owner = nft.owner;
const accountedOwner = accObj.find((obj) => obj.owner === owner);
if (!accountedOwner) {
accObj.push({ owner, count: 1 });
} else {
accountedOwner.count++;
}
return accObj;
}, []);
})
You can play with that at:
https://codesandbox.io/s/happy-frog-bx6kxm?file=/src/App.js