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What is offsetHeight, clientHeight, scrollHeight?
Thought of explaining what is the difference between offsetHeight , clientHeight and scrollHeight or offsetWidth , clientWidth and scrollWidth ?
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How to dismiss keyboard for UITextView with return key?
In IB's library, the introduction tells us that when the return key is pressed, the keyboard for UITextView will disappear. But actually the return key can only act as '\n'.
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Sending data back to the Main Activity in Android
...activity.
When I press a button in the main activity, the child activity is launched.
12 Answers
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Comments in Markdown
What is the syntax for storing a comment in a markdown file, e.g. a CVS $Id$ comment at the top of the file? I found nothing on the markdown project .
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Possible to iterate backwards through a foreach?
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When working with a list (direct indexing), you cannot do it as efficiently as using a for loop.
Edit: Which generally means, when you are able to use a for loop, it's likely the correct method for this task. Plus, for as much as foreach is impl...
to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
To clarify the purpose of this question: I know HOW to create complicated views with both subviews and using drawRect. I'm trying to fully understand the when's and why's to use one over the other.
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What RSA key length should I use for my SSL certificates?
I'm in the process of creating a CSR, and I wonder which is arguably the best length for my RSA key.
8 Answers
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Why does Stream not implement Iterable?
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People have already asked the same on the mailing list ☺. The main reason is Iterable also has a re-iterable semantic, while Stream is not.
I think the main reason is that Iterable implies reusability, whereas Stream is something that can only be used once — more like...
Hidden features of Perl?
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The flip-flop operator is useful for skipping the first iteration when looping through the records (usually lines) returned by a file handle, without using a flag variable:
while(<$fh>)
{
next if 1..1; # skip first record
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}
Run per...
How do I return multiple values from a function? [closed]
The canonical way to return multiple values in languages that support it is often tupling .
14 Answers
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