Type casting in Swift is implemented with the is and as operators. is is used to check the type of a value whereas as is used to cast a value to a different type.
Read moreWhat are the basic operators?
Operators perform mathematical, string, and logical operations on values . Operands are expressions on which operations are performed.
Read moreWhat is XOR in Swift?
A bitwise XOR operation, also known as an exclusive OR operation , results in a value that has each bit set to 1 where one or the other but not both of its arguments had that bit set to 1 .
Read moreWhat is double question mark in Swift?
Double question mark is a nil-coalescing operator . In plain terms, it is just a shorthand for saying != nil . First it checks if the the return value is nil, if it is indeed nil, then the left value is presented, and if it is nil then the right value is presented.
Read moreWhat are optionals in Swift?
An Optional is a type on its own, actually one of Swift 4’s new super-powered enums . It has two possible values, None and Some(T), where T is an associated value of the correct data type available in Swift 4.
Read moreWhat is overflow Swift?
Overflow Operators. If you try to insert a number into an integer constant or variable that can’t hold that value, by default Swift reports an error rather than allowing an invalid value to be created. This behavior gives extra safety when you work with numbers that are too large or too small.
Read moreWhat is the in in Swift?
In is used to start a closure or in loop as well as we specify for the collection on which loop is applied.
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