Converting String to Int with Swift

Question

The application basically calculates acceleration by inputting Initial and final velocity and time and then use a formula to calculate acceleration. However, since the value

Answer 1

Swift 3.0

Try this, you don't need to check for any condition I have done everything just use this function. Send anything string, number, float, double ,etc,. you get a number as a value or 0 if it is unable to convert your value

Function:

func getNumber(number: Any?) -> NSNumber {
    guard let statusNumber:NSNumber = number as? NSNumber else
    {
        guard let statString:String = number as? String else
        {
            return 0
        }
        if let myInteger = Int(statString)
        {
            return NSNumber(value:myInteger)
        }
        else{
            return 0
        }
    }
    return statusNumber
}

Usage: Add the above function in code and to convert use let myNumber = getNumber(number: myString) if the myString has a number or string it returns the number else it returns 0

Example 1:

let number:String = "9834"
print("printing number \(getNumber(number: number))")

Output: printing number 9834

Example 2:

let number:Double = 9834
print("printing number \(getNumber(number: number))")

Output: printing number 9834

Example 3:

let number = 9834
print("printing number \(getNumber(number: number))")

Output: printing number 9834