TypeScript for factory function

Question

TypeScript for factory function

I am looking for a guide on how to create a class declaration in a .d.ts file.

The class has a method that takes a type T and returns an instance of T.

+3

typescript

Mike graham Dec 31. At 1:46

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1 answer

basarat · Accepted Answer · 2014-12-31T04:16:00+0000

You need something creative and then it floats smoothly:

interface Creator<T> {
    new (): T;
}
function factory<T>( arg: Creator<T> ): T {
    return new arg();
}


// Usage: 
class Foo {
    something = 123;
}
var foo = factory( Foo ); // foo:Foo

TypeScript for factory function

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