Fix of #306 issue with typescript types.

[tahq69]

Missing type fix for typescript usage

[eddyerburgh]

Thanks 🙂

[HowdyChad]

@eddyerburgh Enjoying your book! I'm also trying to utilize TypeScript and have a similar problem to what @tahq69 addressed and fixed here. I want to call a method start, like you do in Chapter 4...

test('should be empty when start is called', () => {
    const wrapper = shallow(ProgressBar)
    wrapper.setData({ progress: 70 }) // default to some previous value
    wrapper.vm.start()
    wrapper.update()
    expect(wrapper.attributes().progress).toBe('0')
})

TypeScript of course has no idea what start() is...
So I can make the compiler happy by changing the line to
;(wrapper.vm as any).start()

(I'm still on the fence about no semicolons btw ;) )

I'm looking for a way that I can explicitly state that my ProgressBar component has a start method.

Do you have any pointers?

Thanks!

[eddyerburgh]

Hey @kewlniss . Glad you're enjoying the book!

I'm really sorry, but I'm not experienced with TypeScript.

@ktsn do you have any suggestions for @kewlniss 🙏