Get the current week in Swift

To get the current week in Swift 5, you can use the Calendar and DateComponents classes to calculate the week number for the current date. Here's an example of how you might do this:

let calendar = Calendar.current
let currentDate = Date()
let currentWeek = calendar.component(.weekOfYear, from: currentDate)

In this example, we first create a Calendar instance to represent the current calendar. We then create a Date instance that represents the current date and time. Finally, we use the component(_:from:) method of the Calendar class to calculate the week number for the current date, and store the result in the currentWeek constant.

After this code is executed, the currentWeek constant will contain the week number for the current date. For example, if the current date is December 11, 2022, then currentWeek will be 51.

Note that the week number may be different depending on the calendar that you use. In some calendars, the week number may be calculated using a different starting day of the week (e.g. Monday instead of Sunday), or a different number of days in a week (e.g. 4 instead of 7). To ensure that you are using the correct calendar, you can specify the calendar to use when creating the Calendar instance, like this:

let calendar = Calendar(identifier: .iso8601)

In this example, we create a Calendar instance that uses the ISO 8601 calendar, which defines the week number based on the ISO standard. You can use any calendar identifier that is supported by the Calendar class, depending on your needs.