Remove Optional word from optional value in Swift
Swift provides three ways to unwrap the optional : such as forced unwrapping, optional binding and checking for nil value […]
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Swift
Difference between Value type and Reference type in Swift
A value type is a type where the data or value is copied when assigned to a constant , variable […]
Optionals in Swift
Optionals in Swift are used to represent absence of value. When a value is of optional type, it either has […]
Assertions and Preconditions in Swift
Assertions and preconditions help us create checks for validating the program during runtime. We use our own assumptions and expectations […]
Use of ‘defer statement’ in Swift
Defer statement can be used to defer the execution of certain line/s of code in the program. Statements within the […]
Type-aliases in Swift
Type-aliases define a alternative name to existing type.
Constants and Variables in Swift
Constants and Variables associate a name with a value of particular type. They must be declared before they are used. […]
Install Sass in mac OS Sierra
Macbook comes with pre-installed ruby. To check whether you have ruby installed in your system open the terminal app and […]
Print without newline \n in Xcode
Print is a global function in swift 4.This function prints the output in Xcode console pane followed by a linebreak […]