http collect question

[jhyearsley]

I have correctly solved the exercise but I am curious as to why the results of running the program look like this:

I thought the program was printing two outputs to the console: the length of the string and the totality of the buffer. Here I see one output for the length of the string and then 2 outputs of strings followed by an empty string.

Is this output just due to the way the tutorial is testing our program? If not, either I'm visualizing what's going on incorrectly or I'm not understanding something. Might someone care to explain?

[AnshulMalik]

Yes @jhyearsley .

The runner compares the output of your program with the expected one
ACTUAL is what your program generated and EXPECTED is which the correct solution generated.

Hope it clears your doubts :)