Saya punya array
data = [
{code: 'A1', name: 'bag', qty: 3},
{code: 'A2', name: 'purse', qty: 2},
{code: 'A3', name: 'belt', qty: 1},
]
Saya ingin menghilangkan qty & menduplikasi setiap item ke array lain berdasarkan masing-masing qty :
data = [
{code: 'A1', name: 'bag'},
{code: 'A1', name: 'bag'},
{code: 'A1', name: 'bag'},
{code: 'A2', name: 'purse'},
{code: 'A2', name: 'purse'},
{code: 'A3', name: 'belt'},
]
Saya sudah mencoba:
const [qtyList, setQtyList] = useState(
new Array(renderData.length).fill(1)
);
const [selectedProduct, setSelectedProduct] = useState([])
const updatedQty = qtyList.map((q, index) => {
if (index === k) return q = parseInt(val)
else return q
});
setQtyList(updatedQty); //[3,2,1]
data.map((i, idx) => {
let temp = []
let existed = data.filter(x=>x.code==i.code).length
for (let x=0; x<=qtyList[idx]; x++){
temp.push(i)
}
setSelectedProduct((prev)=> [...prev, i])
}
0
vanio178
13 Januari 2022, 17:21
6 jawaban
Gunakan kode berikut:
var data = [
{ code: 'A1', name: 'bag', qty: 3 },
{ code: 'A2', name: 'purse', qty: 2 },
{ code: 'A3', name: 'belt', qty: 1 },
];
var newArray = data.map(x => {
return Array(x.qty).fill({ code: x.code, name: x.name })
})
console.log([].concat.apply([], newArray))
3
Jeremy Thille
13 Januari 2022, 17:26
Pendekatan saya menggunakan pengurangan
let data = [
{code: 'A1', name: 'bag', qty: 3},
{code: 'A2', name: 'purse', qty: 2},
{code: 'A3', name: 'belt', qty: 1},
]
let a = data.reduce((acc,curr)=>{
const {code,name,qty} = curr;
for (let i = 0; i < qty; i++) {
acc.push({code,name});
}
return acc;
},[])
console.log(a)
0
cmgchess
13 Januari 2022, 17:32
Mungkin ada solusi yang lebih elegan untuk masalah ini, tetapi ini adalah perbaikan cepat saya:
let data = [
{code: 'A1', name: 'bag', qty: 3},
{code: 'A2', name: 'purse', qty: 2},
{code: 'A3', name: 'belt', qty: 1},
]
let dupArr = []
data.map((i) =>{
for(let j = 0;j<= i['qty']-1; j++){
dupArr.push(i);
}
});
dupArr.map((idx)=>{
delete idx['qty'];
})
console.log(dupArr);
0
server-unknown
13 Januari 2022, 18:02
data.map(item => Array(item.qty).fill({ code: item.code, name: item.name })).flat();
0
Nalin Ranjan
13 Januari 2022, 17:36
Gunakan kode ini
data.reduce((a,{qty, ...rest})=>a.concat(Array(qty).fill({...rest})),[]);
0
Hafid Denguir
13 Januari 2022, 17:49
Contoh menggunakan flatMap
const data = [
{ code: "A1", name: "bag", qty: 3 },
{ code: "A2", name: "purse", qty: 2 },
{ code: "A3", name: "belt", qty: 1 },
];
const o = data.flatMap(({ code, name, qty }) =>
Array(qty).fill({ code, name })
);
console.log(o);
0
ikhvjs
13 Januari 2022, 17:59