I am new to Swift and I'm wondering what self is used for and why. I have seen it in classes and structures but I really don't find them essential nor necessary to even mention them in my code. Wh...
77 I'm bridging the sync/async worlds in Swift and doing incremental adoption of async/await. I'm trying to invoke an async function that returns a value from a non async function. I understand that explicit use of Task is the way to do that, as described, for instance, here. The example doesn't really fit as that task doesn't return a value.
8 Swift’s nil is not the same as nil in Objective-C. In Objective-C, nil is a pointer to a non-existent object. In Swift, nil is not a pointer—it is the absence of a value of a certain type. Optionals of any type can be set to nil, not just object types. NULL has no equivalent in Swift. nil is also called nil in Swift Nil has no equivalent ...
The Swift Docs on Control Flow explain the idea behind that: Using a guard statement for requirements improves the readability of your code, compared to doing the same check with an if statement.
The nature of Swift's Double appears to be that it can be imprecise – because of the way it's stored/accessed in binary, even using this rounding function will not return a number rounded to 3 decimal places: e.g., round(8.46 * pow(10.0, 3.0)) / pow(10.0, 3.0) returns 8.460000000000001.
I am looking for a way to replace characters in a Swift String. In this example String: "This is my string" I would like to replace the spaces, " ", with "+" to end up...
