client/src/utils/array.js

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