我正在尝试在一个Typescript项目下运行react-material。
因为我是Typescript的新手,我遇到了一些错误,我不知道如何解决它们。
在这个guest中,我试图创建一个可重用的React组件。(请打开访客查看完整代码)
正如我所说的,上面的例子显示了一些错误,这是homePage中第48行的一个例子:
No overload matches this call.
Overload 1 of 2, '(props: Readonly<MaterialTableProps<IData>>): KTable<IData>', gave the following error.
Type '{ title: string; field: string; type: string; }[]' is not assignable to type 'Column<IData>[]'.
Type '{ title: string; field: string; type: string; }' is not assignable to type 'Column<IData>'.
Types of property 'type' are incompatible.
Type 'string' is not assignable to type '"string" | "boolean" | "time" | "numeric" | "date" | "datetime" | "currency" | undefined'.
Overload 2 of 2, '(props: MaterialTableProps<IData>, context?: any): KTable<IData>', gave the following error.
Type '{ title: string; field: string; type: string; }[]' is not assignable to type 'Column<IData>[]'.ts(2769)为什么这个数组显示错误?
columns = [...{
title: "Birth Place",
field: "birthCity",
type: "string" // ERROR ?!
}]尽管接口清楚地定义了该类型接受字符串:
type?: ('string' | 'boolean' | 'numeric' | 'date' | 'datetime' | 'time' | 'currency');如果有人知道如何完成这项工作,那将是很有帮助的。
发布于 2019-11-08 22:31:09
解决了!天哪,我花了这么多时间来处理这个打字错误...
type IType =
| "string"
| "boolean"
| "numeric"
| "date"
| "datetime"
| "time"
| "currency";
const string: IType = "string";
const columns = [
{
title: "Name",
field: "name",
type: string
},
{
title: "Surname",
field: "surname",
type: string
},
{
title: "Birth Year",
field: "birthYear",
type: string
},
{
title: "Birth Place",
field: "birthCity",
// lookup: { 34: "İstanbul", 63: "Şanlıurfa", 1: "Berlin", 2: "Tunis" },
type: string
}
];发布于 2020-02-21 23:51:56
使用原始字符串值string将被解释为不是正确类型的字符串。要解决这个问题,请将其强制转换为const。
columns = [...{
title: "Birth Place",
field: "birthCity",
type: "string" as const // ERROR ?!
}]发布于 2019-11-15 19:41:38
对于列类型,string实际上不是可接受的类型:

我创建了一个PR来解决这个问题,但是如果你要显示一个字符串,你可以省略这个类型。
https://stackoverflow.com/questions/58764420
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