[英]Error reassigning a value to an object property
I can get the value, but not reassign another one;我可以获得该值,但不能重新分配另一个值; why?
为什么?
export default class RemCpPluginHandler<
SourceType extends StdMap<string | number>
> extends StdFileBasedPluginHandler<StdMap<string | number>> {
constructor(configuration: CollectorConfiguration) {
super(configuration);
this.dataProcessor.recordPreProcessor.preprocessRecord = (
record: SourceType
) => {
const newCountry = record.COUNTRY.toString().replace(
/[0-9]*\. /gi,
""
);
record.COUNTRY = newCountry;
return record;
};
}
}
In record.COUNTRY = newCountry;在记录中。COUNTRY = newCountry; I have the error:
我有错误:
Property 'COUNTRY' does not exist on type 'SourceType'<b r> SourceType extend the interface StdMap<T = string> {[key: string]: T;}属性 'COUNTRY' 不存在于类型 'SourceType' <br> SourceType 扩展接口 StdMap<T = string> {[key: string]: T;}
I solved by changing the type of the input parameter: from我通过改变输入参数的类型来解决:从
record: SourceType
to到
record: {COUNTRY: string}
It is still unclear why the compiler throws the value assignment error.目前还不清楚为什么编译器会抛出赋值错误。
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