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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?

Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject:afterDelay: but with an argument like int / double / float ? ...
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Are unused CSS images downloaded?

... "unused" and thusly, any images won't be downloaded. Chrome 26 (possibly all of them, not sure), does download CSS images if they are applied to the <noscript> element, even when JS is enabled. (It isn't immediately clear to me why though, perhaps this is a bug?). It does not download CSS i...
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How do you default a new class to public when creating it in Visual Studio?

...1033. Visual Studio 2010 (10.0) and below: There is a zip file in there called Class.zip. Unpack this, edit the file to put in your public keyword then re-pack it (make sure you backup the original). After this, make sure VS rebuilds it's cache (which is just the zipfiles unzipped into directorie...
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What does -> mean in Python function definitions?

...much :). – Krotton Jan 17 '13 at 13:16 4 @Krotton Can't blame you for missing it, it's practicall...
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How to find out what group a given user has?

... This one shows the user's uid as well as all the groups (with their gids) they belong to id userid share | improve this answer | follow ...
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Compile time string hashing

... string length, and the compiler is not clever enough to elide the second call. Check other answers for possible fix for this problem. – CygnusX1 Feb 27 '16 at 16:34 ...
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Pandas percentage of total with groupby

... is a table of some kind, so 100 * x doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...). – dhardy Feb 6 '15 at 9:42 6 ...
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Add Variables to Tuple

... I think its important to note that tuples are immutable - they cannot actually be modified. What this solution does is create a new tuple based on two existing tuples. – That1Guy Jan 16 '19 at 20:58 ...
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How to see the changes between two commits without commits in-between?

...question, so I have no idea why it has so many upvotes. The OP is specifically asking how NOT to get the first command you give, and the second has nothing to do with anything. – psusi Sep 4 '15 at 17:51 ...
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Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?

...errupt the entire iPython Notebook server. This will stop iPython Notebook alltogether, which means it won't be possible to restart or save your work, so this is obviously not a great solution (you need to hit CTRL+C twice because it's a safety feature so that people don't do it by accident). In cas...