主页 / 问题 / 851502
Accepted
Pavel Zlotarenchuk
Asked:2020-07-07 22:22:37 +0000 UTC2020-07-07 22:22:37 +0000 UTC

如何在 React Native 中解析 json 结构

  • 772

不久前，我开始学习 React Native。并且遇到了问题。我正在尝试解析https://www.cryptocompare.com/api/data/coinlist 并从数据部分获取图片链接我得到了部分本身

dataImages: Array(responseJson.Data)
console.log(this.state.dataImages[0])

看起来像这样：

"42": {
"Id": "4321",
"Url": "/coins/42/overview",
"ImageUrl": "/media/12318415/42.png",
"Name": "42",
"Symbol": "42",
"CoinName": "42 Coin",
"FullName": "42 Coin (42)",
"Algorithm": "Scrypt",
"ProofType": "PoW/PoS",
"FullyPremined": "0",
"TotalCoinSupply": "42",
"PreMinedValue": "N/A",
"TotalCoinsFreeFloat": "N/A",
"SortOrder": "34",
"Sponsored": false
},
"300": {
"Id": "749869",
"Url": "/coins/300/overview",
"ImageUrl": "/media/27010595/300.png",
"Name": "300",
"Symbol": "300",
"CoinName": "300 token",
"FullName": "300 token (300)",
"Algorithm": "N/A",
"ProofType": "N/A",
"FullyPremined": "0",
"TotalCoinSupply": "300",
"PreMinedValue": "N/A",
"TotalCoinsFreeFloat": "N/A",
"SortOrder": "2212",
"Sponsored": false
},...

尽管我添加了“[0]”，但如果在输入“.DOGE”（元素名称）之后，我可以获得元素但我需要从所有元素中获取 ImageUrl 或 Name 字段请告诉我我做错了什么.

javascript

1 个回答

  1. Best Answer

    这就是我经历所有元素的方式

    for (var key in this.state.dataImages) {
            if (key == coinKey) {
                urlImage = `${this.state.dataImages[key].ImageUrl}`
            }
        }
    • 0

相关问题