React本机筛选器数组返回未定义
React本机筛选器数组返回未定义
提问于 2019-05-24 08:18:44
我试图访问数组对象和setstate上的密钥对值，但返回未定义
当我执行console.log(obj)操作时，我看到了这些值，但是当我试图访问它们时，它却变得没有定义
const data =[
[
{
"name": "chris",
"city": "unknown",
"code": "404",
"zip": "345"
},{
"name": "kulo mike",
"city": "america",
"code": "210",
"zip": "43"
}, {
"name": "chris smith",
"city": "unknown",
"code": "918",
"zip": "89"
},
]
]我试过了
const person = data.filter(
item =>{
item.name == 'chris'
console.log(item.name)
})还有这个
const person = data.filter(
item => item.name === 'kulo mike'
)[0].zip设置状态
this.state={
user: person
}回答 1
Stack Overflow用户
回答已采纳
发布于 2019-05-24 08:25:59
数组中的数组，请尝试将数据转换为：
const data =[
{
"name": "chris",
"city": "unknown",
"code": "404",
"zip": "345"
},{
"name": "kulo mike",
"city": "america",
"code": "210",
"zip": "43"
}, {
"name": "chris smith",
"city": "unknown",
"code": "918",
"zip": "89"
},
]
const user = data.filter(item => item.name === 'kulo mike')[0]
setState({user})页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/56284394
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