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

1 vote241 views2 answers
How to dismiss keyboard in swift
Swift
1 vote226 views1 answer
Playing a sound in swift
Swift
0 vote232 views1 answer
Swift 5 uidatepicker display inline
Swift
1 vote242 views2 answers
Swift dismiss keyboard on return
Swift
0 vote247 views1 answer
HOW TO KNOW IPHONE BETTRY CHARGE IN SWIFTUI
Swift
2 votes292 views1 answer
Loop key value swift
Swift
0 vote209 views1 answer
Loop backwards swift
Swift
0 vote215 views1 answer
Deselect all cell in collectionview
Swift
0 vote232 views1 answer
How to print body moya swift
Swift
1 vote234 views1 answer
Swift get max of two numbers
Swift