FreeCodeCamp:Chunky Monkey

Chunky Monkey

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) {

// Break it up.

var arr1=[];

var i=0;

while(i<arr.length){

arr1.push(arr.slice(i,i+size));

i+=size;

}

return arr1;

}

用到的知识：array.push();//关于push的详解：/golden_wheat/article/details/53231810

array.slice();//关于slice的详解：/golden_wheat/article/details/53178088