100 Days of Swift - Day 3

Continuation of Hacking With Swift 100 Days of Swift

Day 3 - Operators and conditions

This day was about operators, most of them (arithmetic, comparison, etc) works about the same the only difference being that parenthesis are not required inside if statements.

For switch statements, break; is not required / used, so if you want to execute the next condition in another case you need to use the reserved keyword fallthrough.

Now "range" operators are a bliss for numerical comparisons and array checking, the half-open range ..< or ..> implies that the range is not inclusive ex: 1..<5 is 1,2,3,4. Where the full range operation is inclusive so 1...5 is 1,2,3,4,5.
On the same fashioned way one can print specifics inside an array with this operator, ex:


let rangedArray: [Int] = [1,2,3,4];
print(rangedArray[1...]);


prints:
[2, 3, 4]