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We can convert int value to Double object by instantiating Double class or calling Double. valueOf() method.
We can round a double to the nearest Int by using the round() method in Swift. If the decimal value is >=. 5 then it rounds up to the nearest value. for example, it rounds the 15.7 to 16.0 .
Before the equals sign, put a colon and the variable type like this: var value: Double = 3 . This explicitly tells Swift that the variable is a double, even though the value looks like an integer.
As a result of all this, Swift will refuse to automatically convert between its various numeric types – you can't add an Int and a Double , you can't multiply a Float and an Int , and so on.
Try Double(theOrder.bookingMins)
What I prefer to do is to use computed properties. So I like to create an extension of Double and than add a property like below:
extension Int {
var doubleValue: Double {
return Double(self)
}
}
And than you can use it in very Swifty way, I believe in future updates of swift language will be something similar.
let bookingMinutes = theOrder.bookingMins.doubleValue
in your case
label.text = String(format: "%.1f hour", bookingMinutes / 60.0)
Style guide used: https://github.com/raywenderlich/swift-style-guide
label.text = String(format:"%.1f hour", Double(theOrder.bookingMins) /60.0)
Swift 5 (Basic to Convert Int to Double)
let a = 3, let b =4
func divide ( number1 : Int, number2 : Int)
{
let divide = Double (number1) / Double (number2)
print (divide)
}
The output should be 0.75
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