typescript中高级类型Record详解

/**
 * Construct a type with a set of properties K of type T
 */
type Record<K extends keyof any, T> = {
    [P in K]: T;
};

type proxyKType = Record<K,T>

type petsGroup = 'dog' | 'cat' | 'fish';
interface IPetInfo {
    name:string,
    age:number,
}

type IPets = Record<petsGroup, IPetInfo>;

const animalsInfo:IPets = {
    dog:{
        name:'dogName',
        age:2
    },
    cat:{
        name:'catName',
        age:3
    },
    fish:{
        name:'fishName',
        age:5
    }
}

type petsGroup = 'dog' | 'cat' | 'fish';
interface IPetInfo {
    name:string,
    age:number,
}

type IPets = Record<petsGroup | 'otherAnamial', IPetInfo>;

const animalsInfo:IPets = {
    dog:{
        name:'dogName',
        age:2
    },
    cat:{
        name:'catName',
        age:3
    },
    fish:{
        name:'fishName',
        age:5
    },
    otherAnamial:{
        name:'otherAnamialName',
        age:10
    }
}

enum IHttpMethods {
    GET = 'get',
    POST = 'post',
    DELETE = 'delete',
    PUT = 'put',
}

const methods = ["get", "post", "delete", "put"];

interface IHttpFn {
    <T = any>(url: string, config?: AxiosRequestConfig): Promise<T>
}

type IHttp = Record<IHttpMethods, IHttpFn>;

const httpMethods: IHttp = methods.reduce((map: any, method: string) => {
    map[method] = (url: string, options: AxiosRequestConfig = {}) => {
        const { data, ...config } = options;
        return (axios as any)[method](url, data, config)
            .then((res: AxiosResponse) => {
                if (res.data.errCode) {
                    //todo somethins
                } else {
                    //todo somethins
                }
            });
    }
    return map
}, {})

export default httpMethods;

type IHttp = Record<IHttpMethods, IHttpFn>;