js一个数组变为指定长度的多个数组

var dataArr = [0,1,2,3,4,5,6,7,8,9,10];

var newArr = [];

var s = parseInt(dataArr.length / 4);

var n = 0;

for (var i = 1; i <= s; i++) {

	var star = (i - 1) * 4;

	newArr[n++] = dataArr.slice(star, star + 4);

}

var y = dataArr.length - s * 4;

if (y > 0) {

	newArr[n++] = dataArr.slice(s * 4);

}

console.log(newArr);