Guard in Swift

A guard statement is used to transfer program control out of a scope if one or more conditions aren’t met also called as early exit. i.e. Either you meet the condition asked, or get out of the scope.guard let is also an alternative to if let, which also unwraps optionals. guard let will unwrap an optional for you and if it finds nil inside, it expects you to exit the function, loop, or condition you used it in.

Swift let vs var

How often you see a newbie programmer trying to learn new programming language and struggling with new keywords. One of those keywords are "var" and "let" . In this post I'm going to concentrate on these two keywords "var" and "let" used in Swift Programming Language. Variable: Variable is a name given to memory location. … Continue reading Swift let vs var