js小方法積累，將一個數組按照n個一份，分成若干數組

// 把一個數組按照一定長度分割成若干數組
function group(array, subGroupLength) {
    let index = 0;
    let newArray = [];
    while(index < array.length) {
        newArray.push(array.slice(index, index += subGroupLength));
    }
    return newArray;
}

let numberArray = [1,2,3,4,5,6,7,8,9,10,11,12];;
let groupedArray = group(numberArray, 5);
console.log(groupedArray);

打印結果為：