How to check if a value is an integer or a string in jasmine.js?

Question

I am writing unit test using Jasmine in a web app using BackboneJS.
There are a lot of examples showing you how to check a value in this way:

        it("should set the id property to default value", function()         {             expect(this.task.get("id")).toEqual(null);         }); 

But I can't find any example checking if an attribute whether is number or string in Javascript using Jasmine.

Is it appropriate to make a check like this?
If yes, what is the proper way to make it?

Example: I want to check if the id is an integer > 0. How can I make it in Jasmine?

Answer 1

For posterity, one of the questions posed here is to test whether a value is a number. From the jasmine docs:

expect(12).toEqual(jasmine.any(Number)); 

Answer 2

I would make something like this:

    describe("when instantiated", function()      {         it("should exhibit attributes", function ()          {               .....             expect(this.task.get("id")).toMatch(/\d{1,}/);             .....         });     });