String to double swift

let lessPrecisePI = Float("3.14")

let morePrecisePI = Double("3.1415926536")
let invalidNumber = Float("alphabet") // nil, not a valid number
//Unwrap the values to use them using if/let

if let cost = Double(textField.text!) {
    print("The user entered a value price of \(cost)")
} else {
    print("Not a valid number: \(textField.text!)")
}
//You can convert formatted numbers and currency using the NumberFormatter class.

let formatter = NumberFormatter()
formatter.locale = Locale.current // USA: Locale(identifier: "en_US")
formatter.numberStyle = .decimal
let number = formatter.number(from: "9,999.99")

Source: stackoverflow.com

Similar codes

0 vote330 views1 answer
Swiftui set up a binding in init
Swift
1 vote375 views1 answer
Underline uitextfield swift rotate
Swift
5 votes432 views1 answer
Swift uiview add tap gesture
Swift
0 vote403 views1 answer
How to check if not running in debufgger swift
Swift
0 vote400 views1 answer
Swift 5 make a phone call
Swift
1 vote373 views1 answer
How to select but not focus textfield swift
Swift
2 votes368 views1 answer
Sf symbols
Swift
0 vote444 views1 answer
Change textview link color swift
Swift
1 vote383 views1 answer
Swift remove tableview cell
Swift
0 vote365 views1 answer
Add months to date swift
Swift