utils/array.js

   1 export const ArrayFun = {
   2
   3   // Double array intialization
   4   init: function(size1, size2, initElem) {
   5     return [...Array(size1)].map(() => Array(size2).fill(initElem));
   6   },
   7
   8   range: function(max) {
   9     return [...Array(max).keys()];
  10   },
  11
  12   toObject: function(keys, values) {
  13     if (!Array.isArray(values))
  14       // Second argument is a scalar
  15       values = Array(keys.length).fill(values);
  16     return (
  17       ArrayFun.range(keys.length)
  18       .reduce((acc, curr) => (acc[keys[curr]] = values[curr], acc), {})
  19     );
  20   }
  21
  22 };