A white board coding is getting place in the tech industry. In world of efficient IDE (Integrated Development Environment), we use to do coding which makes us sometime helpless at the time of Interview. So, for my reference I have created the basic syntax which as a developer I should know before going to interview. It seems silly to others but for me it is quite helpful, especially when you are delaing with multiple languages(e.g. Python, Java, Objective-C, Javascript etc).
You can checkout awesome cheatsheet for swift, 1.)https://www.raywenderlich.com/73967/swift-cheat-sheet-and-quick-reference 2.)https://github.com/iwasrobbed/Swift-CheatSheet 3.)https://mhm5000.gitbooks.io/swift-cheat-sheet/content/