TypeScript接口描述类 [英] TypeScript interface to describe class

问题描述

TypeScript中是否有一个用于描述类声明的接口?

Is there an interface in TypeScript to describe a class declaration?

function module(name: string, classDeclaration: IClass) {
     this.classHash[name] = classDeclaration; //example use of class declaration
}

推荐答案

否.我本来希望Function(或FunctionConstructor)是这样的接口，但是，没有.

No. I would have expected Function (or FunctionConstructor) to be such an interface, but, no.

令人困扰的是，按预期，在下面的代码中，typeof返回的类型是function ...，但是function(小写的f)既不是Typescript也不是Typescript的接口.因此答案必须为否.

What is troubling is that, as expected, in the code below the type returned by typeof is function ... but function (lower case f) is neither a type nor an interface in Typescript. So the answer has to be no.

"use strict";

class Hello {

    private s: string

    constructor(s: string) {
        this.s= s
    }

    public sayHello() {
        console.log(`Hello ${this.s}`)
    }    
}


function instantiate<T>(clazz: any, name: string): T {
    console.log(`Type of clazz: ${typeof clazz}`)
    return new clazz(name) as any as T
}


instantiate<Hello>(Hello, 'John').sayHello()

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