将數組array分成長度為subGroupLength的小數組并傳回新數組
function group(array, subGroupLength) {
let index = 0;
let newArray = [];
while(index < array.length) {
newArray.push(array.slice(index, index += subGroupLength));
}
return newArray;
}
例如:
var Array = [1,2,3,4,5,6,7,8,9,10,11,12];;
var groupedArray = group(Array, 6);
//得到的groupedArray 數組為:
groupedArray[[1,2,3,4,5,6],[7,8,9,10,11,12]]