Function spliceOut

src/Map.js:856–871

(array, idx, canEdit)

}

function spliceOut(array, idx, canEdit) {
  const newLen = array.length - 1;
  if (canEdit && idx === newLen) {
    array.pop();
    return array;
  }
  const newArray = new Array(newLen);
  let after = 0;
  for (let ii = 0; ii < newLen; ii++) {
    if (ii === idx) {
      after = 1;
    }
    newArray[ii] = array[ii + after];
  }
  return newArray;
}

const MAX_ARRAY_MAP_SIZE = SIZE / 4;
const MAX_BITMAP_INDEXED_SIZE = SIZE / 2;