Angular 2 typescript d3 type issue: Property 'x' does not exist on type '[number, number]'

Question

I am generating a line chart with d3. It works, but typescript code complain about a property not exists in vs.

Property \'x\' does not exist on type

Answer 1

.x((d:any) => this.xScale(d.x)) .y((d:any) => this.yScale(d.y))