如何在TypeScript中指定任何可更新的类型?

本文介绍了如何在TypeScript中指定任何可更新的类型?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我尝试过此操作，但不起作用. Foo只是对有效方法的测试. Bar是真正的尝试，它应该可以接收任何新类型，但是Object的子类对此无效.

I tried with this but it doesn't work. Foo is just a test of what works. Bar is the real try, it should receive any newable type but subclasses of Object isn't valid for that purpose.

class A { } class B { public Foo(newable: typeof A):void { } public Bar(newable: typeof Object):void { } } var b = new B(); b.Foo(A); b.Bar(A); // <- error here

推荐答案

您可以使用{ new(...args: any[]): any; }允许带有构造函数且带有任何参数的任何对象.

You can use { new(...args: any[]): any; } to allow any object with a constructor with any arguments.

class A { } class B { public Foo(newable: typeof A):void { } public Bar(newable: { new(...args: any[]): any; }):void { } } var b = new B(); b.Foo(A); b.Bar(A); // no error b.Bar({}); // error