Question

How to convert a string to double in Swift

Answer 1

let s = "3.14"

let d = Double(s) ?? 0

print(d)




/*
run:

3.14

*/

 

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Answer 2

import Foundation

let s = "3.14"

let d = (s as NSString).doubleValue

print(d)




/*
run:

3.14

*/

 

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