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iOS Build a Weather App with Swift (Retired) Data Modeling With Structures Customizing Dates

Devin Scheu
Devin Scheu
66,191 Points
Posted by Devin Scheu
Devin Scheu
66,191 Points

Help With Swift

Question: Let's assume we have a date object called dateOfBirth. Create a constant named dateFormatter and assign an NSDateFormatter instance to it.

Code:

date_formatter.swift 
import Foundation
let secondsSinceBirth = NSTimeInterval(1200000000)
var dateOfBirth = NSDate(timeIntervalSince1970: secondsSinceBirth)
let dateFormatter = dateFormatter(dateOfBirth) as NSDateFormatter

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

you incorrectly initialized the NSDateFormatter constant you used

let dateFormatter = dateFormatter(dateOfBirth) as NSDateFormatter

you called the initializer incorrectly. initializers use the same name as the class (NSDateFormatter) and the NSDateFormatter initializer takes no arguments. the cast is also unnecessary

you can initialize an NSDateFormatter by calling its initializer that takes 0 arguments:

let dateFormatter = NSDateFormatter()