CODEWITHSUNDEEP
javascriptarrays
Suma
Suma

Reputation: 21

Extract month from year-month numbers array

I have an array, e.g.,

a = [20208, 20209, 202010, 20206]

I need only the last digit(s) (the month) of each number, e.g.,

a = [8, 9, 10, 6]

How do I do that with JavaScript?

Upvotes: 0

Views: 100

Answers (2)

malarres
malarres

Reputation: 2946

Being numeric values, another option is to use the mod operator rather than slicing:

const a = [20208, 20209, 202010, 20206,20218];
console.log(a.map(x => (x%100)>12?x%10:x%100));

Upvotes: 1

deepak
deepak

Reputation: 1375

If month is at the end of the year in array then simply loop over item and slice item after year, you will get the month.

const a = [20208, 20209, 202010, 20206, 202011]
const t = a.map(item => +`${item}`.slice(4))
console.log(t)

Upvotes: 3

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