get the date for the first day of the current month in swift

main.swift
extension Date {
    var startOfMonth: Date {
        let calendar = Calendar(identifier: .gregorian)
        let components = calendar.dateComponents([.year, .month], from: self)
        return calendar.date(from: components)!
    }
}
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main.swift
let firstDayOfCurrentMonth = Date().startOfMonth
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main.swift
func getFirstDayOfMonth(date: Date) -> Date {
    let calendar = Calendar(identifier: .gregorian)
    let components = calendar.dateComponents([.year, .month], from: date)
    return calendar.date(from: components)!
}

let currentDate = Date()
let firstDayOfCurrentMonth = getFirstDayOfMonth(date: currentDate)
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