Sort an array of objects based on another ordered array of objects 🤓

copySort.js

const copySort = (array, order, key) =>
  [...array].sort(
    (a, b) => order.findIndex(x => x[key] === a[key]) - order.findIndex(x => x[key] === b[key])
  )
const order = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }, { id: 5 }]
const unordered = [
  { id: 2, label: 'Two' },
  { id: 3, label: 'Three' },
  { id: 5, label: 'Five' },
  { id: 4, label: 'Four' },
  { id: 1, label: 'One' },
]
console.log(copySort(unordered, order, 'id'))
// > [ { id: 1, label: 'One' },
// >   { id: 2, label: 'Two' },
// >   { id: 3, label: 'Three' },
// >   { id: 4, label: 'Four' },
// >   { id: 5, label: 'Five' } ]