//Slasher Flick
//返回一个数组被截断n个元素后还剩余的元素,截断从索引0开始。
function slasher(arr, howMany) {
// it doesn't always pay to be first
var len=arr.length;
if(howMany===0){
return arr;
}else if(howMany>len){
return [];
}else if(len-howMany===1){
return [arr[howMany]];
}else{
return [arr[howMany],arr[howMany+1]];
}
}
console.log(slasher([1, 2, 3], 2));