如何使用moment.js在节点js中生成周数数组？

Question

I've use case in which I need to generate an array of last 6 week numbers starting from current week number. Now this is 5th week of 2020. I have to create an array like,

[52,1,2,3,4,5]

This is a dynamic array which has to be generated using moment.js week() method. I know how to get current week number using moment but don't know how to create this kind of an array.

Answer 1

It's the 5th week of 2020 ;-). A simple for loop will do the job:

const dates = []
for (let i = 0; i < 6; i += 1) {
   dates.unshift(moment().add(-i, 'weeks').week())
}
console.log(dates);