Getting Error in Date Components

Question

I'm using date component to get user's age but I'm getting error. Can you please tell me what I'm missing here?

var calendar = Calendar(identifier: .gregorian)
var components: DateComponents? = calendar.dateComponents([.year, .month, .day], from: datePicker.date, to: Date)

I'm getting this error message:

Type of expression is ambiguous without more context

Similar question is asked here:

how to resolve “Type of expression in ambiguous without more context”? in swift 3.0

but it did not work for me.

The last argument should be some `date` and not `Date` (which is a type). You probably want `..., to: Date())` — Martin R, Aug 16 '18 at 12:26
To get the current date you need to create an instance of `Date` without any parameters, which is what @MartinR thinks you want there as the last parameter. So use `Date()` there instead of `Date`. — Rakesha Shastri, Aug 16 '18 at 12:32

ielyamani · Accepted Answer · 2018-08-16T13:03:36.707

Parameters of a function should be instances of classes and not class names:

var components: DateComponents? = calendar.dateComponents([.year, .month, .day], from: datePicker.date, to: Date())

If we refer to the library definition of this function:

public func dateComponents(_ components: Set, from start: Date, to end: Date) -> DateComponents

Date is the type of the argument to be passed to this function. Calculating the age of a user is the result of calculating the date difference from their birthday (datePicker.date, which is an instance if Date) and now (Date(), which is also an instance if Date).

Getting Error in Date Components

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