swift declare optional values
// Optional values are types that can contain nil
var optionalValue: String? // this can be done with more than strings, but for this example that's what was used
Also in Swift:
- get device height spritekit
- swift change enum value
- limit log file size swift
- Split a String into an array in Swift
- time formats swift
- how to change background color of stackview swift
- swift corner radious of view controller
- .next() enum swift
- xcode how to get aspect ratio of device
- guard let swift
- swift check if regex is in string
- Library not loaded: @rpath/App.framework/App
- swift open url
- register for remote notifications swift
- swift set uicolor
- how to swift pie chart quartzcore framework
- xcode how to know which textfield is selected
- uilabel font size swift
- show alert swiftui
- if statement swfit
- hide bottom tab bar swift
- swift how to add a completion block to a function
- convert string to int swift
- store bool value in nsuserdefaults swift