[英]Loop object that in the array and in the another object
我有以下结构。 我需要获得内部价值并在React中获得通过。 我想我需要获取一个值数组,例如:['Bitcoin','Etherium'...]并通过它映射。 我该如何实施呢?
let arr = [
{
"CoinInfo": {
"Id": "1182",
"Name": "BTC",
"FullName": "Bitcoin",
"Internal": "BTC",
"ImageUrl": "/media/19633/btc.png",
"Url": "/coins/btc/overview"
}
},
{
"CoinInfo": {
"Id": "7605",
"Name": "ETH",
"FullName": "Ethereum",
"Internal": "ETH",
"ImageUrl": "/media/20646/eth_logo.png",
"Url": "/coins/eth/overview"
}
]
这是使用Array.prototype.map()
获得硬币名称数组的方法
const arr = [{ "CoinInfo": { "Id": "1182", "Name": "BTC", "FullName": "Bitcoin", "Internal": "BTC", "ImageUrl": "/media/19633/btc.png", "Url": "/coins/btc/overview" } }, { "CoinInfo": { "Id": "7605", "Name": "ETH", "FullName": "Ethereum", "Internal": "ETH", "ImageUrl": "/media/20646/eth_logo.png", "Url": "/coins/eth/overview" } } ]; const coinNames = arr.map(x => x.CoinInfo.FullName); console.log(coinNames);
像这样做
import React from 'react'
export default class YourComponent extends React.Component {
render() {
let arr = [
{
"CoinInfo": {
"Id": "1182",
"Name": "BTC",
"FullName": "Bitcoin",
"Internal": "BTC",
"ImageUrl": "/media/19633/btc.png",
"Url": "/coins/btc/overview"
}
},
{
"CoinInfo": {
"Id": "7605",
"Name": "ETH",
"FullName": "Ethereum",
"Internal": "ETH",
"ImageUrl": "/media/20646/eth_logo.png",
"Url": "/coins/eth/overview"
}
}
]
let newArr = arr.map((data) => {
return data.CoinInfo.FullName
})
console.log('new array', newArr);
return (
<div>
</div>
)
}
}
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