Does d3-ease definition need to be updated?

[billdwhite]

I am using a transition with an easing function in d3 in my Angular 2 typescript application. The following line of code, which I believe is valid, is generating errors when the typescript validation runs.

...
mySelection.enter().transition().ease(d3.easeElasticIn.amplitude(4).period(3)).attr("x", 100);
...

I get this error in the angular-cli 'ng build' process:

Property 'amplitude' does not exist on type '(normalizedTime: number) => number'

Looking at the d3-ease/index.d.ts file, I see this:

...
export function easeElasticIn(normalizedTime: number): number;
...

So is the d3-ease typescript definition just wrong? Looking at the d3 source code, it appears so but maybe I'm just not understanding something?

[tomwanzek]

@billdwhite thanks for reporting. I am closing this issue in favor of the newly opened DT issue 13767

[billdwhite]

Thanks!!!