CODEWITHSUNDEEP
iosswiftxcode
Sajal Gupta
Sajal Gupta

Reputation: 149

There is no output at Xcode

var letters: [Character] = ["a", "b", "c", "d"]
for c in letters {
    print(c, terminator: "")
}

I am a totally new in swift programming. I use Xcode 9 Beta version. When I compile the code there is no output but if I wrote any thing outside the for a loop the immediately it will show in the output.

Upvotes: 2

Views: 110

Answers (1)

Palle
Palle

Reputation: 12109

The problem is that if you write a print statement without a newline as the terminator, it will only write into a buffer. The buffer is flushed when you print a newline.

To print a newline, just use an empty print() statement:

var letters: [Character] = ["a", "b", "c", "d"]
for c in letters {
    print(c, terminator: "")
}
// Print a newline here, so everything gets flushed.
print()

Upvotes: 2

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