Javascript 如何在TypeScript中为常量定义接口或类型?
我试图为我的数据集定义接口或类型,但出现了一些错误。下面是我使用的错误接口和代码:Javascript 如何在TypeScript中为常量定义接口或类型?,javascript,typescript,types,interface,Javascript,Typescript,Types,Interface,我试图为我的数据集定义接口或类型,但出现了一些错误。下面是我使用的错误接口和代码: interface IVehicle { [key: number]: { model: string, year: number }; } interface IVehicles { [type: string]: Array<IVehicle> } const DATASET: IVehicles = { CAR: [ ["BMW",
interface IVehicle {
[key: number]: { model: string, year: number };
}
interface IVehicles {
[type: string]: Array<IVehicle>
}
const DATASET: IVehicles = {
CAR: [
["BMW", {
model: "520d",
year: 2015,
}],
["Audi", {
model: "A4",
year: 2011,
}]
],
MOTORCYCLE: [
["YAMAHA", {
model: "R6",
year: 2020,
}],
["DUCATI", {
model: "Monster",
year: 2018,
}]
]
}
console.log(DATASET);
键入代码:您可以使用
type IVehicle = [string, { model: string, year: number }];
interface IVehicles {
[type: string]: Array<IVehicle>
}
typeIVehicle=[string,{model:string,year:number}];
接口车辆{
[类型:字符串]:数组
}
我想你需要一个元组类型,
{[key:number]:{…}
对于一个数组来说没有意义,在这个数组中,你只需要两个值,其中一个值不是那种形状的对象。谢谢你的帮助!这个代码有效。
type IVehicle = [string, { model: string, year: number }];
interface IVehicles {
[type: string]: Array<IVehicle>
}