javascript - 如果数组结束javascript，则从头开始切片

Question

所以我正在研究一些过滤器，用户甚至可以从 ex 中选择:“周五到周二”，但是我如何从日期数组中切分这些

var days = ["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"]

那么我如何将索引从 5 切片到 2 应该返回:

["friday", "saturday", "sunday", "monday", "tuesday"]

Answer 1

你可以使用

var days = ["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"]

const selection = [...days.slice(4), ...days.slice(0, 2)];


console.log(selection);