TypeScript: Splitting module into multiple files

Question

I want to split class definitions in a same module into multiple files. So I did like this and it worked.

a.ts:
module MyModule{
    class ClassA{
    }
}

b.ts:
module My Module{
    class ClassB{
    }
}

Then I tried to use ClassA in ClassB and did that:

b.ts:
///<reference path="a.ts"/>
module MyModule{
    class ClassB{
        private a:ClassA;
    }
}

But it didn't work; "ClassA" needed to be "MyModule.ClassA" in b.ts though they're in the same module.

I prefer a simpler way like above. Do you have any ideas?

Fenton · Accepted Answer · 2013-01-21 10:34:40Z

2

You can solve your problem by making the class public:

module MyModule{
    export class ClassA{
    }
}

I'm not sure why you need to do this as really they are part of the same module - but this seems to be the case.

answered Jan 21, 2013 at 10:34

Fenton

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4 Comments

uhyoooooo Over a year ago

Thank you very much.It worked. The reason I do this is that the source would be very large in one file. Essentially ClassA doesn't need to be public, so this is a bit uncomfortable, but I think it's better than before.

Fenton Over a year ago

Splitting a module across multiple files is good practice, so no arguments from me there.

Buzzy Over a year ago

I don't think this is the right solution because it changes the semantics of ClassA. I realize that this is how TypeScript implements this but still.

Fenton Over a year ago

@buzzy To keep ClassA private, you simply put it in the same module declaration. The only thing you can't do is both. It is also worth bearing in mind TypeScript doesn't support internal or protected access modifiers, so you will find yourself using public more.

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