CODEWITHSUNDEEP
iosswift
O_S
O_S

Reputation: 24

How to loop through Date Range?

I have a Json Data which contains 2 Key:Value "startDate":"2008.11", and "endDate":"2011.10", respectively, and what i wanna do is to loop through the date range until this statement becomes false:

while startDate <= endDate { 
   let range += startDate + 1
   print(range)
}
 something similar like this.. .

how to loop through the date range in swift?

Upvotes: 0

Views: 1296

Answers (1)

Joakim Danielson
Joakim Danielson

Reputation: 52118

Assuming you have extracted the json values you can use DateComponents to calculate the number of months between the values

let startDate = "2008.11".split(separator: ".").compactMap {Int($0)}
let endDate = "2011.10".split(separator: ".").compactMap {Int($0)}

//Maybe add a check here that both arrays are of length 2
let startComponents = DateComponents(year: startDate[0], month: startDate[1])
let endComponents = DateComponents(year: endDate[0], month: endDate[1])

let months = Calendar.current.dateComponents([.month], from: startComponents, to: endComponents).month!

And now you can use a simple for loop

for n in 0..<months {
    //...
}

If you want to work with days (and dates) you can calculate them as

let days = Calendar.current.dateComponents([.day], from: startComponents, to: endComponents).day!

but you need to decide what day in month to use for startDate and endDate

Upvotes: 1

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