用枚举属性将JSON对象映射到键入对象中
我想将我从API提取的JSON“字符串”转换为打字稿模型,如果我将其中一个道具从枚举更改为字符串,它很容易工作,但是我似乎无法将其映射到数小时搜索和尝试不同的事物。
我有一个模型,该模型拥有类似的类型
export enum SEAT_TYPE {
ECONOMY = "ECONOMY",
PREMIUM_ECONOMY = "PREMIUM_ECONOMY",
BUSINESS = "BUSINESS",
}
export type Seat = {
number: string;
type: SEAT_TYPE;
status: boolean;
};
export class SeatingPlan {
seating: Seat[] = [];
}
,然后我从API中汲取类似的东西
[{
number: "1A",
type: "BUSINESS",
status: false,
},
{
number: "1B",
type: "BUSINESS",
status: false,
},
{
number: "1C",
type: "BUSINESS",
status: false,
}]
,我只使用基本循环函数来映射每个元素并将其转换为类似的对象,
export function convert(json: Array<Seat>) {
return json.map(
(seat) =>
<Seat>{
number: seat.number,
type: seat.type as keyof typeof SEAT_TYPE,
status: seat.status,
},
);
}
但是我在哪里称呼我
convert(json)
我遇到了这个错误,此时我已经完全迷失了,我已经半个typescript了,我觉得我缺少一些简单的东西,任何帮助都会很大感谢。
Argument of type '{ number: string; type: string; status: boolean; }[]' is not assignable to parameter of type 'Seat[]'.
Type '{ number: string; type: string; status: boolean; }' is not assignable to type 'Seat'.
Types of property 'type' are incompatible.
Type 'string' is not assignable to type 'SEAT_TYPE'.
提前致谢。
I am wanting to convert a JSON "string" that I pull from an api into my Typescript model, if i change one of the props from enum to string it works quite easily, however I cannot seem to map it to an enum despite hours of searching and trying different things.
I have a model that holds an array of types like this
export enum SEAT_TYPE {
ECONOMY = "ECONOMY",
PREMIUM_ECONOMY = "PREMIUM_ECONOMY",
BUSINESS = "BUSINESS",
}
export type Seat = {
number: string;
type: SEAT_TYPE;
status: boolean;
};
export class SeatingPlan {
seating: Seat[] = [];
}
I then pull something like this from an api
[{
number: "1A",
type: "BUSINESS",
status: false,
},
{
number: "1B",
type: "BUSINESS",
status: false,
},
{
number: "1C",
type: "BUSINESS",
status: false,
}]
An i'm using just a basic loop function to map over each element and convert it to a typed object like this
export function convert(json: Array<Seat>) {
return json.map(
(seat) =>
<Seat>{
number: seat.number,
type: seat.type as keyof typeof SEAT_TYPE,
status: seat.status,
},
);
}
But where i call my
convert(JSON)
I get this error and I'm totally lost at this point, i'm semi-new to typescript and i feel like i'm missing something quite simple, any help would be greatly appreciated.
Argument of type '{ number: string; type: string; status: boolean; }[]' is not assignable to parameter of type 'Seat[]'.
Type '{ number: string; type: string; status: boolean; }' is not assignable to type 'Seat'.
Types of property 'type' are incompatible.
Type 'string' is not assignable to type 'SEAT_TYPE'.
Thanks in advance.
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