我有一个Json对象数组，我将它绑定到一个网格。
一月一日
这是我的示例JSON
[{
"TransactionID": "1",
"MyProperty1": "some data 1",
"MyProperty2": "28-02-2023",
"MyProperty3": "some more data 1",
"MyProperty4": "some other data 1",
"documents": [
{"TransactionID": "1","MyProperty1":"Document 1","MyProperty2":"Completed"},
{"TransactionID": "1","MyProperty1":"Document 2","MyProperty2":"In Progress"},
{"TransactionID": "1","MyProperty1":"Document 3","MyProperty2":"In Progress"}
]
},
{
"TransactionID": "2",
"MyProperty1": "some data 2",
"MyProperty1": "27-02-2023",
"MyProperty1": "some more data 2",
"MyProperty1": "some other data 2",
"documents": [
{"TransactionID": "2","MyProperty1":"Document 1","MyProperty1":"Completed"},
{"TransactionID": "2","MyProperty1":"Document 2","MyProperty1":"Completed"}
]
}];我尝试过这样做，但抛出此错误'Element implicitly has an 'any' type because expression of type 'string' can't be used to index type 'Object'
doFilter(filterText: string) {
let filteredObject = this.engagementData.filter(o =>
Object.keys(o).some(k => o[k].toLowerCase().includes(filterText.toLowerCase())));
}这里我的数据包含上面的JSON。
有人能告诉我我错过了什么吗？
我知道循环遍历每个JSON对象的每个属性是一种选择
但如果有任何内置函数可以从JSON中检索所有对象（在对象的任何属性中具有特定字符串），则会很有帮助
2条答案
按热度按时间ttcibm8c1#
我认为您的错误与此答案Element implicitly has an 'any' type because expression of type 'string' can't be used to index相同
您需要指定k的类型
pdkcd3nj2#
如果你的
this.engagementData是object类型，那么你不能在它上面调用string方法，所以你不能在它上面调用.toLowerCase()，这就是错误告诉你的。如果您试图过滤
objects，它具有与您搜索的文本匹配的属性，那么您应该检查该object的所有values：您需要对
o[k]对象properties的每个值调用toLowerCase()和.includes()，而不是o[k]。注：
对于
object类型就是这种情况，如果o[k]可以是array类型或其他类型，则需要检查o[k]的类型并为此修改代码。