Javascript Question
Using map to access nested json in react native
I am trying to access keys and arrays in my json structure with
Array.map()Here's my JSON:
{
"payload": [
{
"id": 1,
"name": "Atta",
"brands": [
{
"id": 118,
"name": "Wheatola",
"subProducts": [
{
"id": 858,
"name": "Chakki Aata",
"minPrice": 52,
"maxPrice": 56
},
{
"id": 2,
"name": "Chakki Atta",
"minPrice": 222,
"maxPrice": 236
}
]
}
]
},
{
"id": 16,
"name": "Rice (Branded)",
"brands": [
{
"id": 25,
"name": "CookStar",
"subProducts": [
{
"id": 1163,
"name": "Best Basmati",
"creditDays": 0,
"minPrice": 5600,
"maxPrice": 5600
},
{
"id": 863,
"name": "Extra Long Grain Basmati",
"creditDays": 0,
"minPrice": 7800,
"maxPrice": 7800
}
]
}
]
}
]
}
I want to access
payload.name, payload.brands.name(s), payloads.brands.subproducts.name(s)Array.map()Expected output is:
Atta, Wheatola, Chakki Aata
Atta, Wheatola, Chakki Aata
Rice (Branded), Cookstar, Best Basmati
Rice (Branded), Cookstar, Extra Long Grain Basmati
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Answer Source
You need to nest Array.map()
var data = {
"payload": [
{
"id": 1,
"name": "Atta",
"brands": [
{
"id": 118,
"name": "Wheatola",
"subProducts": [
{
"id": 858,
"name": "Chakki Aata",
"minPrice": 52,
"maxPrice": 56
},
{
"id": 2,
"name": "Chakki Atta",
"minPrice": 222,
"maxPrice": 236
}
]
}
]
},
{
"id": 16,
"name": "Rice (Branded)",
"brands": [
{
"id": 25,
"name": "CookStar",
"subProducts": [
{
"id": 1163,
"name": "Best Basmati",
"creditDays": 0,
"minPrice": 5600,
"maxPrice": 5600
},
{
"id": 863,
"name": "Extra Long Grain Basmati",
"creditDays": 0,
"minPrice": 7800,
"maxPrice": 7800
}
]
}
]
}
]
}
const renderData = data.payload.map((payload) => {
return payload.brands.map(brand =>{
return brand.subProducts.map(subProduct => {
return `${payload.name}, ${brand.name}, ${subProduct.name}`
}).join("\n")
}).join("\n")
}).join("\n")
console.log(renderData);
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