lib/util.js
function range(from, to) {
  // TODO: make this inlined.
  const list = new Array(to - from + 1);

  for (let i = 0; i < list.length; i += 1) {
    list[i] = from + i;
  }
  return list;
}
function range(from, to) {
  // TODO: make this inlined.
  const list = new Array(to - from + 1);

  for (let i = 0; i < list.length; i += 1) {
    list[i] = from + i;
  }
  return list;
}
function range ( from , to ) { // TODO: make this inlined. const list = new Array ( to - from + 1 ) ; for ( let i = 0 ; i < list . length ; i += 1 ) { list [ i ] = from + i ; } return list ; }
Create an array of numbers.
@param {number} from
@param {number} to
@returns {number[]}
Create an array of numbers .