如何从数组中获取子数组？

一尘不染

javascript

我有var ar = [1, 2, 3, 4, 5]并想要一些函数getSubarray(array, fromIndex, toIndex)，调用的结果getSubarray(ar, 1, 3)是新数组[2, 3, 4]。

阅读 528

2020-05-01

共1个答案

一尘不染

看一眼 Array.slice(begin, end)

const ar  = [1, 2, 3, 4, 5];



// slice from 1..3 - add 1 as the end index is not included



const ar2 = ar.slice(1, 3 + 1);



console.log(ar2);

2020-05-01