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iOS Swift Basics (retired) Control Flow For-Condition-Increment

Posted by Robert Gunn
Robert Gunn
1,741 Points

var index = 0

Im a little confused on why we are creating a variable of the index. Is this because we need to initialize the beginning of the loop at zero.

1 Answer

Gunhoo Yoon
Gunhoo Yoon
5,027 Points
Gunhoo Yoon
Gunhoo Yoon
5,027 Points

That's correct because while loop's condition depends on count-like variable. If var hasn't been declared it will raise undefined variable error of sort. This is common across many programming languages. Also, this is equivalent as first stage of for loop for (initialize; condition; change)

Robert Gunn
Robert Gunn
1,741 Points

Awesome! I wanted to make sure I was interpreting it correctly. Thanks!