猴子吃香蕉, 分割数组(猴子吃香蕉可是掰成好几段来吃哦)
把一个数组arr按照指定的数组大小size分割成若干个数组块。
例如:chunk([1,2,3,4],2)=[[1,2],[3,4]]; chunk([1,2,3,4,5],2)=[[1,2],[3,4],[5]];
function chunk(arr, size) {// 请把你的代码写在这里var count = Math.ceil(arr.length/size);var myArr = [];var a = 0;for(var i = 0; a++ < count-1; i+=size) {myArr.push(arr.slice(i, i+size)); }myArr.push(arr.slice(i, arr.length)); return myArr;}chunk(["a", "b", "c", "d", "e"], 2);