[英]Set optional header into class in typescript
export default class ErrorResponseModel {
body: string
headers: object
statusCode: number
constructor(message: object, statusCode: number = 500, header?: {key: string, value: string}) {
this.headers = {
'Content-Type': 'application/json'
}
this.body = JSON.stringify(message)
this.statusCode = statusCode
if (header) {
this.headers[header.key] = header.value
}
}
}
我嘗試將 header 設置為this.headers
,但出現錯誤:
Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.\n No index signature with a parameter of type 'string' was found on type '{}'.
我該如何處理這個錯誤? 我使用 TypeScript v4.7.4
您可以改為使用記錄作為標題: headers: Record<string, string>
。 請參閱Typescript:類型“{}”沒有索引簽名
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