Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
544 views
in Technique[技术] by (71.8m points)

swift2 - .toInt() removed in Swift 2?

I was working on an application that used a text field and translated it into an integer. Previously my code

textField.text.toInt() 

worked. Now Swift declares this as an error and is telling me to do

textField.text!.toInt()

and it says there is no toInt() and to try using Int(). That doesn't work either. What just happened?

Question&Answers:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

In Swift 2.x, the .toInt() function was removed from String. In replacement, Int now has an initializer that accepts a String

Int(myString)

In your case, you could use Int(textField.text!) insted of textField.text!.toInt()

Swift 1.x

let myString: String = "256"
let myInt: Int? = myString.toInt()

Swift 2.x, 3.x

let myString: String = "256"
let myInt: Int? = Int(myString)

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...