client/src/utils/array.js

   1 // Remove item(s) in array (if present)
   2 export const ArrayFun = {
   3
   4   remove: function(arr, rfun, all) {
   5     const index = arr.findIndex(rfun);
   6     if (index >= 0) {
   7       arr.splice(index, 1);
   8       if (!!all) {
   9         // Reverse loop because of the splice below
  10         for (let i = arr.length - 1; i >= index; i--) {
  11           if (rfun(arr[i])) arr.splice(i, 1);
  12         }
  13       }
  14     }
  15   },
  16
  17   // Double array intialization
  18   init: function(size1, size2, initElem) {
  19     return [...Array(size1)].map(() => Array(size2).fill(initElem));
  20   },
  21
  22   range: function(max) {
  23     return [...Array(max).keys()];
  24   }
  25
  26 };