Apply store pattern to track global app state

[vchess.git] / client / src / utils / array.js

// Remove item(s) in array (if present)
export function remove(array, rfun, all)
{
  const index = array.findIndex(rfun);
  if (index >= 0)
  {
    array.splice(index, 1);
    if (!!all)
    {
      // Reverse loop because of the splice below
      for (let i=array.length-1; i>=index; i--)
      {
        if (rfun(array[i]))
          array.splice(i, 1);
      }
    }
  }
}

// Double array intialization
export function init(size1, size2, initElem)
{
  return [...Array(size1)].map(e => Array(size2).fill(initElem));
}

export function range(max)
{
  return [...Array(max).keys()];
}