我们有一系列月份数字:
const months = [1,2,3,4,5,6,7,8,9,10,11,12];
我们如何从当前月份对此数组进行排序? e.g。
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]
答案 0 :(得分:2)
您不需要排序,因为它已经排序(只是不是您想要的方式):
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();
答案 1 :(得分:2)
console.log( [1,2,3,4,5,6,7,8,9,10,11,12].map(m => (12 + 9 - m) % 12 + 1) + '' )