对当月的"month numbers"数组进行排序

Question

我们有一组月份数字：

const months = [1,2,3,4,5,6,7,8,9,10,11,12];

我们如何从当月开始对这个数组进行排序？例如

const currentMonth = 9; // September
months.sort((current, next) => { 
   // ... sorting algorithm here
});
console.log(months); // Prints Array [9,8,7,6,5,4,3,2,1,12,11,10]

Answer 1

你不需要

排序，因为它已经排序了(只是不是你想要的方式(：

const months = [1,2,3,4,5,6,7,8,9,10,11,12];
const currentMonth = 9; 
months = months
             .slice(currentMonth)
             .concat(months.slice(0, currentMonth))
             .reverse();

Answer 2

console.log( [1,2,3,4,5,6,7,8,9,10,11,12].map(m => (12 + 9 - m) % 12 + 1)  + '' )