const getIDS = n => [...n].reduce((r,n) => r+Number(n),0) // or const getIDS = n => n.split('').reduce((r,n) => r+Number(n),0)
const getIDS = n => [...`${n}`].reduce((r,n) => r+Number(n),0)- const getIDS = n => [...n].reduce((r,n) => r+Number(n),0)
- // or const getIDS = n => n.split('').reduce((r,n) => r+Number(n),0)