Object keys from array values

gistfile1.txt

const pathIds = ["p1", "p2", "p3", "p4", "p5"] as const

function Fn() {
  let data: { [K in typeof pathIds[number]]?: { x: number, y: number } } = {}

  data['p1'] = {
    x: 10,
    y: 20
  }
}