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what is the difference between using the optional and creating normal variable without assigning any value?

7th Oct 2016, 1:00 AM
مصطفى دويدار
مصطفى دويدار - avatar
2 Respuestas
0
normal variable must has a value, but optional can be nil
11th Oct 2016, 3:14 PM
Diluka W
Diluka W - avatar
0
Optional is used when you need to declare a variable but not want to assign that the value at that point.
21st Dec 2016, 9:31 AM
Sushobhit jain
Sushobhit jain - avatar