Cannot find name eror while using namespace in typescript

Question

I am trying to understand the namespaces and modules in TypeScript.

Please see the sample code:

namespace ModuleOne.ModuleTwo.ModuleThree{
       export class SomeClass{
           constructor(){};
            someVariableOne:any;
            someVariableTwo:any;
            someFunction= function(){someFunctionCode};
      };
}

But while using this SomeClass.

ModuleOne.ModuleTwo.ModuleThree.SomeClass.someFunction();

I am getting this error as:

Cannot find name 'ModuleOne'

Please let me know If I'm doing something wrong or there is some other approach that I need to follow.

Nitzan Tomer · Accepted Answer · 2017-02-08 08:58:22Z

1

Your code has a different error:

Property 'someFunction' does not exist on type 'typeof SomeClass'

(your code in playground)

The reason is that someFunction is a property of the class instance, and not a static method.
It should be:

let instance = new ModuleOne.ModuleTwo.ModuleThree.SomeClass();
instance.someFunction();

Or if you want a static method:

namespace ModuleOne.ModuleTwo.ModuleThree{
       export class SomeClass{
           static someFunction() { }

           constructor(){};
            someVariableOne:any;
            someVariableTwo:any;
      };
}

answered Feb 8, 2017 at 8:58

Nitzan Tomer

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2 Comments

Sanjay Nainani Over a year ago

This is not the error that I'm getting, I even tried it in playground, did not give me any error. I'm using VS code. But having the error of cannot find name.

Nitzan Tomer Over a year ago

Well, the playground link in my answer does have a compilation error.. Unless of course the code in your question isn't the code you're trying to compile. Also, what version of typescript are you using?

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